​KCPE PAST PAPERS 2015: SCIENCE QUESTIONS AND ANSWERS [QNS 1-25]
Question 01.
The main function of the hair and mucus found in the breathing system is to
Question 02.
The following are characteristics of a certain type of tooth:
(i) sharp
(ii) chisel shaped (iii) has one root The type of tooth described is a
![KCPE PAST PAPERS 2015: SCIENCE QUESTIONS AND ANSWERS [QNS 1-25]](/uploads/6/0/4/0/60406393/edited/img-20180521-124554.jpg)
Question 03.
Which one of the following pairs of diseases is correctly matched with the time of immunization?
Question 04.
Which is the last stage in energy transformation when a kerosene stove is burning?
Question 05.
The diagram below represents a set-up that can be used to demonstrate a certain aspect of heat energy.
The aspect that can be demonstrated is
Question 06.
Which one of the following is a compound fertilizer?
Question 07.
Which one of the following statements is correct about the digestive system?
Question 08.
The picture below represents a type of interdependence between plants.
The type of interdependence represented
Question 09.
A pupil used water that had been used in rinsing clothes to mop the floor. Which method of water conservation did the pupil practice?
Question 10.
The importance of fibre in the human diet is to help in the
Question 11.
The following are characteristics of a certain animal:
(i) lays eggs
(ii) has constant temperature (iii) has a hairy body The animal is likely to be
Question 12.
The picture below shows a tomato plant with a sign of crop disease.
The sign shown is
Question 13.
Which one of the following components of air is correctly matched to its percentage?
Question 14.
Which one of the following is a social effect of drug abuse?
Question 15.
he chart below represents a simple classification of plants.
Which one of the following plants is not correctly classified?
Question 16.
A child has the following signs and symptoms:
(i) gets out of breath
(ii) pale skin (iii) dizziness. Which one of the following foods should the child feed on?
Question 17.
Which one of the following materials is non magnetic?
Question 18.
Which one of the following statements is correct about proper use and storage of medicine?
Question 19.
Anaemia and irritation in livestock can be a sign of attack by
Question 20.
Which of the following body fluids is the least likely to transmit HIV?
Question 21.
The picture below shows parts of a flower.
Question 22.
Which one of the following physical changes observed in boys and girls during adolescence is not correctly matched?
Boys Girls
Question 23.
Which one of the following livestock parasite control measures can be applied for both ticks and tapeworms?
Question 24.
Which one of the following methods will mainly conserve soil and not water?
Question 25.
In a certain activity, a sample of soil was mixed with water in a transparent container, shaken and allowed to settle.
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![KCPE PAST PAPERS 2014: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]](/uploads/6/0/4/0/60406393/edited/dsc05762.jpg)
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Question 47.
One of the following is not a component of soil?
- A. Rock particles.
- B. Water.
- C. Plant.
- D. Air.
Question 48.
The diagram below represents a set up that can he used to investigate good and poor conductors of electricity’?
Which one of the following materials when used to connect wires at point S would make the bulb not light?
- A. Pencil.
- B. Aluminium foil.
- C. Steel wool.
- D. Rubber band.
Question 49.
The diagram below represents a claw hammer in use.
Which pair of the positions V, W, X and Y represents the load and pivot?
- A. V and Y.
- B. W and X.
- C. V and X.
- D. W and Y.
Question 50.
In a certain investigation pupils sat at different positions around a pupil who was ringing a hell.
Which one of the following aspects of sound were the pupils investigating?
- A. Special sounds.
- B. Loud and soft sound.
- C. Noise pollution.
- D. Direction of sound.
MORE STD 8 REVISION RESOURCES
-
FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT - DOWNLOAD MORE KCPE 2014 PAST PAPERS AND MARKING SCHEMES​https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2014-past-papers-questions-answers-and-reports
K.C.P.E PAST PAPERS: 2012 SOCIAL STUDIES REPORT
​The number of candidates that sat for the 2012 KCPE social studies increased from 766,355 in 2011 to 811,688 in 2012
Candidates General Performance
candidates ‘performance for the last four years
| YEAR | CANDIDATURE | MAXIMUM MARK | MEAN | STANDARD DEVIATION |
| 2012 | 811,688 | 60/60 | 37.32/60 | 10.13 |
| 2011 | 766,355 | 59/60 | 33.13/60 | 9.12 |
| 2010 | 724,388 | 60/60 | 38.88/60 | 9.74 |
| 2009 | 719,712 | 59/60 | 37.46/60 | 9.80 |
The following observations are made from the table above:
- There was a 5% increase in candidature in 2012.
- The standard deviation increased from 9.12 in 2011 to 10.13 in 2012, meaning there was a larger spread of scores (performance).
- The mean has increased from 33.13 in 2011 to 37.32 in 2012, an indication of a better performance.
Syllabus coverage
KCPE Social Studies Syllabus Coverage in 2012
| SN. | CONTENT AREA | NO OF ITEMS | PERCENTAGE |
| 1.0 | PHYSICAL ENVIRONMENT | 11 | 18% |
| 2.0 | PEOPLE & POPULATION | 6 | 10% |
| 3.0 | SOCIAL RELATIONS & CULTURAL ACTIVITIES | 4 | 7% |
| 4.0 | RESOURCES AND ECONOMICAL ACTIVITIES | 19 | 32% |
| 5.0 | POLITICAL DEVELOPMENTS AND SYSTEMS | 8 | 13% |
| 6.0 | CITIZENSHIP | 2 | 3% |
| 7.0 | DEMOCRACY AND HUMAN RIGHTS | 2 | 3% |
| 9.0 | LAW, PEACE AND CONFLICT RESOULUTION | 4 | 7% |
| 10.0 | THE GOVERNMENT OF KENYA | 4 | 7% |
| TOTAL | 60 | 100% |
​The above table shows that the distribution of items according to the weighting of each topic in the syllabus was good. The three main topics covering a significant proportion in the syllabus were well represented: Resources and Economical activities (32%), Physical Environment (18%) and Political developments and systems 13%. Topics that are short and less emphasized in the syllabus have been given low representation: Citizenship (2%) and Democracy and Human rights (2%).
Distribution of Cognitive Skills
Distribution of cognitive Skills in The 2012 KCPE Social Studies
| SKILLS TESTED | NO OF ITEMS | PERCENTAGE |
| KNOWLEDGE | 6 | 10% |
| COMPREHENSHION | 12 | 20% |
| APPLICATION | 14 | 23% |
| ANALYSIS | 16 | 27% |
| SYNTHESIS | 6 | 10% |
| EVALUATION | 6 | 10% |
| TOTAL | 60 | 100% |
As shown in the table above, all levels of cognitive domain were tested. The distribution of the cognitive skills was even, based on the levels. The middle level skills had more questions; Comprehension 20%, Application 23% and Analysis 27%. The low level and high level skill had fewer questions, 10% of the total syllabus coverage.
Analysis of Performance per Item
KCPE 2012 performance per Item
From the above graph, the general performance per item was good. Only three items had a facility index of below 35%. Any item where the candidate scoring was below 35% was perceived as poor performance. These items are: 18(19.78%), 19(31.80%), 47(21.88%).
Questions with a facility index of 35 % and below
The items that performed poorly as per the facility index are discussed below. The discussion will focus on ideas, skills and thinking processes that the candidate might have gone through to come up with the answer. The asterisks * denotes the correct response.
Question 18:
Who among the following members of a school management committee ensures that money is used properly?
- A. The chairperson.
- B. The sponsor.
- C. The head teacher.
- D. The treasurer.
This was an analysis question that tested understanding of the various function of the school committee. The candidates confused the role of usage of the school finances with that of the treasurer as the custodian of money. Majority of the candidate chose the treasurer, while the correct answer was C (The Head teacher). Most probably the teachers have not concentrated on the depth of this topic hence most of the candidates might have guessed the answer.
Question 19:
Which one of the fol1owin statements is true about the policy of assimilation used by the French in Senegal?
- A. Africans became citizens of France.
- B. The French were made to learn African languages.
- C. The French appointed Africans to rule Senegal.
- D. Africans were refused to vote in general elections.
Response Pattern
| OPTION | A* | B | C | D |
| % CHOOSING PATTERN | 31.80 | 20.23 | 24.69 | 22.01 |
| MEAN MARK | 43.72 | 32.35 | 34.83 | 35.72 |
The question was an analysis and it required the candidate to have knowledge on the French policy of assimilation in Senegal in order to pick the correct answer. This topic is taught in class 7. Though the bright candidates were able to give the correct answer A (Africans become citizens of French), the other candidates were unable to distinguish assimilation policy from other systems of colonial administration. Teachers must have concentrated in various types of colonial administration and not the in-depth description of the various systems.
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Question 47
The main reason why petroleum products are transported using a pipeline is that it
- A. reduces the number of heavy vehicles on roads
- B. costs less than using other forms of transport
- C. protects the petrol from being stolen
- D. ensures that petrol is safe from fire.
Response Pattern
| OPTION | A | B* | C | D |
| % CHOOSING PATTERN | 19.35 | 21.88 | 10.89 | 46.57 |
| MEAN MARK | 40.39 | 38.84 | 35.46 | 35.90 |
This was an evaluation question, which required candidates’ to make judgment on the most correct answer. Most students chose D, (Ensures that petrol is safe from fire). This may have been attributed to the frequent cases of fire outbreak caused by tankers. However even the brighter candidates still went for A (reduces the number of heavy vehicles on roads), while the correct answer was B (Costs less than using other forms of transport). Teachers should put more emphasis on Pipeline as a mode of transport.
​General comments
- The general performance of the paper was good, most items behaved well in performance. Only five items were scored above 85% and five items were scored below 40%.
- There was an improvement in performance (mean 37.32) as compared to 2011 (mean 33.13) despite the increase in candidature.
- Teachers should keep up the good work and encourage the candidates to read questions carefully to avoid getting mixed up.
- Teachers should discourage rote learning, only questions that required a higher level of cognitive skills were performed poorly.
​KCPE PAST PAPERS 2014: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]
Question 01.
In the human body digested food is absorbed in the
- A. stomach
- B. large intestines
- C. rectum
- D. small intestines.
Question 02.
The diagram below represents a certain type of human tooth.
The function of the tooth is
- A. gripping and tearing
- B. tearing and grinding
- C. crushing and grinding
- D. biting and crushing.
Question 03.
A certain person looked healthy and strong hut tested positive for HlV/AIDS. In which one of the following stages of HI V/AIDS was the person likely to be?
- A. Window.
- B. Incubation.
- C. Symptomatic.
- D. Full blown.
Question 04.
The following are sexually transmitted infections except
- A. syphilis
- B. gonorrhoea
- C. bilharzia
- D. chancroid.
![KCPE PAST PAPERS 2014: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]](/uploads/6/0/4/0/60406393/edited/dsc00684.jpg)
CBC & CEMASTEA Facilitator delivering content to teachers at Kisii High School (April, 2019)
Question 05.
Which one of the following pairs consists of planets with the longest orbits?
- A. Mars and Mercury.
- B. Venus and Jupiter.
- C. Earth and Saturn.
- D. Neptune and Uranus.
Question 06.
In order to make a certain weather instrument, a pupil assembled the following materials:
Glass bottle, ink, biro pen tube, nails, manilla paper and water.
Which one of the following instrument was the pupil likely to make?
Which one of the following instrument was the pupil likely to make?
- A. Wind vane.
- B. Liquid thermometer.
- C. Rain gauge.
- D. Windsock.
Question 07.
The following are some adaptations of plants that grow in wet environment except having
- A. large flat leaves
- B. leaves with waxy upper surface
- C. thick leaf cuticle
- D. an increased number of stomata.
Question 08.
Which one of the following groups consists only of field pests?
- A. Weevils, aphids and weaver birds.
- B. Aphids, weaver birds and white ants.
- C. Weevils, white ants and Stalkborer.
- D. Aphids, weaver birds and Stalkborer.
Question 09.
Which one of the following is a characteristic of amphibians?
- A. Lay their eggs on land.
- B. Live partly in water.
- C. Have moist skin with scales.
- D. Adults breathe through gills.
Question 10.
The diagram below represents a beak of a certain bird.
The bird represented is a
- A. filter feeder
- B. grain eater
- C. nectar feeder
- D. fish eater.
Question 11.
In which one of the following activities is water used in industries?
- A. Cleaning tools and equipment.
- B. Preparation of soft drinks.
- C. Washing cars.
- D. Watering plants.
Question 12.
Which one of the following is an advantage of hard water?
- A. Saves soap during washing.
- B. Lathers easily with soap.
- C. Forms scum with soap.
- D. Suitable for drinking.
Question 13.
Mary and John were playing on the see saw as shown in the diagram below.
In order to balance on the see-saw
- A. John should move towards the pivot
- B. Mary should move away from pivot
- C. move the pivot towards John
- D. move the pivot towards Mary.
Question 14.
The following are methods of maintaining simple tools:
(i) Cleaning after use
(ii) Proper storage
(iii) Sharpening cutting edges
(iv) Proper use of tools.
Which pair consists only of methods for safety from accidents?
(ii) Proper storage
(iii) Sharpening cutting edges
(iv) Proper use of tools.
Which pair consists only of methods for safety from accidents?
- A. (ii) and (iv).
- B. (i) and (iv).
- C. (ii) and (iii).
- D. (i) and (iii).
Question 15.
Which one of the following components of air is used for preservation of soft drinks?
- A. Carbon dioxide.
- B. Nitrogen.
- C. Oxygen.
- D. Inert gases.
Question 16.
Which one of the following pairs of processes are as a result of increase and decrease in temperature respectively?
Question 17.
Which one of the following statements is true about liquids and gases?
- A. Liquids have definite volume.
- B. Gases have definite volume.
- C. Liquids have definite shape.
- D. Gases have definite shape.
Question 18.
A mixture of’ salt solution, maize grains and iron filings can be separated by
- A. filtering, use of magnet, evaporation
- B. decanting, picking, winnowing
- C. filtering, decanting, evaporation
- D. winnowing, use of magnet, picking.
Question 19.
The energy transformation that takes place when a torch that uses batteries is switched on is
- A. electrical—>chemical——>heat—>light
- B. electrical—> heat—>chemical—>light
- C. chemical—>electrical--->light——>heat
- D. chemical—>electrical—-->heat——>light.
Question 20.
Formation of a rainbow can be demonstrated by the following activities except when
- A. observing the sun through a horizontally-held transparent biro pen casing
- B. placing a mirror in water to face the sun
- C. spraying water in the air from the mouth in bright sunshine
- D. placing a biro pen casing on water in a glass container.
Question 21.
Which one of the following is a source of electricity?
- A. Torch.
- B. Dam.
- C. Solar panel.
- D. Biogas plant.
Question 22.
Which one of the following consists of foods that are mainly for body building?
- A. beef cassava, potatoes.
- B. mutton, maize, pawpaw.
- C. peas, beans, eggs.
- D. carrots, bananas, tomatoes.
Question 23.
Which one of the following groups of symptoms is correctly matched with the deficiency disease?
Question 24.
Which one of the following pairs consists only of components of environment that produce carbon dioxide?
- A. Air and plants.
- B. Animals and plants.
- C. Water and air.
- D. Soil and animals.
Question 25.
Use of excess fertilisers will mainly pollute
- A. soil and rater
- B. water only
- C. soil and air
- D. soil only.
MORE STD 8 REVISION RESOURCES
-
FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT -
DOWNLOAD MORE KCPE 2014 PAST PAPERS AND MARKING SCHEMES​https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2014-past-papers-questions-answers-and-reports
​KCPE PAST PAPERS 2013: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]
Question 26.
Which pair of’ plants stores food in the roots?
- A. Sweet potato and carrot.
- B. Irish potato and arrow root.
- C. Carrot and Irish potato.
- D. Onions and cassava.
Question 27.
Which of the following groups of food crops is correctly classified into cereals, legumes and fruits?
Question 28.
The diagram below shows some parts of a flower.
The parts representing the stigma and filament are
- A. K and L
- B. L and N
- C. K and M
- D. N and M.
Question 29.
Which of the following food chains is correct’?
- A. Grass —> grasshopper —> goat.
- B. Maize —> mice —> snake.
- C. Sunflower —> butterfly —> rabbit.
- D. Grass —> antelope —> rhino.
Question 30.
Which of the following groups of animal feeds mainly provides a diet of proteins, carbohydrates and fats respectively?
- A. Desmodium, clover, sweet potato vines.
- B. Lucern, maize stalks. oats.
- C. Napier grass, sweet potato vines, maize stalks.
- D. Lucern, desmodium, napier grass.
Question 31.
Which of the following groups of foods would provide nutrients suitable for a child suffering from kwashiorkor?
- A. Sorghum, carrots, sweet potatoes.
- B. Oranges, Irish potatoes, sugar cane.
- C. Beef, peas, milk.
- D. Mangoes, arrowroots, spinach.
Question 32.
Bilharzia can be prevented by
- A. boiling water before drinking
- B. wearing gumboots when walking in stagnant water
- C. draining stagnant water from around the homestead
- D. covering latrines after use.
Question 33.
Which of the following uses of water are recreational only?
- A. Transport, cleaning, swimming.
- B. Cleaning, boat racing, mixing chemicals.
- C. Swimming, fishing, boat racing.
- D. Fishing, transport, mixing chemicals.
Question 34.
Which of the following statements about HIV infected persons is correct?
Infected persons
- A. can only be taken care of by health workers
- B. need to visit hospitals for cure
- C. should be provided with a balanced diet
- D. should be discouraged from playing with others.
Question 35.
Excessive use of herbicides and pesticides affect the soil by reducing the
- A. number of animals in the soil
- B. nutrients in the soil
- C. humus content in the soil
- D. water retention in the soil.
Question 36.
Which of the following parts of the human breathing system are both involved in cleaning. warming and moistening air?
- A. Diaphragm and trachea.
- B. Lungs and diaphragm.
- C. Nose and lungs.
- D. Trachea and nose.
Question 37.
Which of the following pairs of livestock parasite control methods can control liver flukes?
- A. Rotational grazing and deworming.
- B. Dipping and spraying of animals.
- C. Rotational grazing and spraying of animals.
- D. Deworming and dipping.
Question 38.
In which of the following are the characteristics of solids and liquids correctly matched?
Question 39.
Which of the following groups of objects consists of only objects that would sink in water?
- A. Piece of chalk, steel needle, cork.
- B. Nail, piece of glass, stone.
- C. Bottle top, nail, cork.
- D. Piece of chalk, plastic bottle, polythene bag.
Question 40.
The following are reasons for fitting a tap near the bottom of a tank except
- A. making gravitational force to act on water
- B. making water to flow faster
- C. to increase pressure
- D. to let all the water out.
Question 41.
The main reason why murram is placed on roads is to
- A. absorb rain water
- B. make the roads last longer
- C. increase grip with tyres
- D. make the roads more attractive.
Question 42.
Which of the following groups of products are correctly classified according to the farm animals producing them?
Question 43.
The following processes are involved in the formation of a zygote in plants
(i) Growth of pollen tube
(ii) Pollination
(iii) Fusion
(iv) Pollen tube breaks.
The correct order of the processes is
(ii) Pollination
(iii) Fusion
(iv) Pollen tube breaks.
The correct order of the processes is
- A. (ii), (i), (iv), (iii)
- B. (i), (ii), (iv), (iii)
- C. (ii), (i), (iii), (iv)
- D. (iv), (i), (iii), (ii).
Question 44.
Which of the following only consists of energy giving foods?
- A. Lemon and honey.
- B. Butter and coconut.
- C. Eggs and fish.
- D. Bread and pineapple.
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Question 45.
Which of the following statements describes soft water? Soft water
- A. is clear and clean
- B. requires a lot of soap for washing
- C. is safe for drinking
- D. ¡s water that has been boiled.
Question 46.
In an activity to investigate mixing of liquids, liquid P mixed with liquid Q. Liquid R did not mix with Liquid P and Q. Liquid R mixed with cooking oil.Which one of the following correctly represents liquids P, Q and R?
Question 47.
The diagram below represents a set up used to demonstrate a certain property of light.
Which one of the following statements is CORRECT about the set up? Light is
- A. refracted from P to the eye
- B. reflected from Q to the eye
- C. refracted from Q to the eye
- D. reflected from P to the eye.
Question 48.
Which one of the following pairs of materials will pollute soil?
- A. Saw dust and artificial fertilizer.
- B. Plastics and artificial fertilizer.
- C. Wood ash and saw dust.
- D. Plastics and iron filings.
Question 49.
In a certain investigation pupils used a straight pipe to observe a candle flame. They then bent the pipe and observed again.
Which aspect of light was being investigated?
- A. Formation of shadows.
- B. Uses of light.
- C. Sources of light
- D. How light travels.
Question 50.
A pupil was blindfolded and asked to listen as a bell was rang from different positions.
Which aspect of sound was being investigated?
- A. Direction of sound.
- B. Effects of sound pollution.
- C. Loud and soft sounds.
- D. Meaning of special sounds.
MORE STD 8 REVISION RESOURCES
-
FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT -
DOWNLOAD MORE KCPE 2013 PAST PAPERS AND MARKING SCHEMES
​https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2013-past-papers-questions-answers-and-reports
​KCPE PAST PAPERS 2013: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]
Question 01.
​Heat is transferred through a vacuum by
- A. convection and conduction’
- B. convection only
- C. conduction and radiation
- D. radiation only.
Question 02.
The best procedure of separating a mixture of sand, maize and salt is
- A. picking, dissolving, filtering. evaporating
- B. dissolving, filtering, picking, evaporating
- C. picking, filtering, dissolving, evaporating
- D. dissolving, decanting, picking, evaporating.
Question 03.
To stop a moving object, the force applied should be
- A. in the same direction as that of the moving object
- B. opposite and less than that of the moving object
- C. equal and in the opposite direction to that of the moving object
- D. perpendicular and more than that of the moving object.
Question 04.
The soil component investigated is
- A. organic matter
- B. water
- C. air
- D. mineral salts.
Question 05.
Which of the following pairs of processes occurs when temperature decreases?
- A. Melting and condensation.
- B. Freezing and melting..
- C. Contraction and evaporation.
- D. Freezing and condensation.
Question 06.
Which one of the following animals has scales on its body?
- A. Chameleon.
- B. Whale.
- C. Toad.
- D. Newt.
Question 07.
The main reason why mothers are encouraged to breast feed their infants is because breast milk
- A. is free from disease causing germs
- B. is at the right temperature for infants
- C. boosts infant immunity
- D. is easily digested by infants.
Question 08.
Splash erosion can be prevented by
- A. use of gabions
- B. mulching
- C. terracing
- D. contour farming.
Question 09.
Newton is the unit for measuring
- A. weight
- B. mass
- C. volume
- D. pressure.
Question 10.
Soil that is good for modelling has
- A. high water drainage
- B. rough texture
- C. high capillarity
- D. large air spaces.
Question 11.
The following are processes that take place during birth in humans
(i) Dilation of the cervix
(ii) Contraction of the uterus
(iii) Bursting of the amniotic bag
(iv,) Pushing out of the baby
(v) Cutting of the umbilical cord
Which of the following is the correct order of the processes?
(ii) Contraction of the uterus
(iii) Bursting of the amniotic bag
(iv,) Pushing out of the baby
(v) Cutting of the umbilical cord
Which of the following is the correct order of the processes?
- A. (i), (iii), (ii), (iv), (v).
- B. (i), (iii), (iv), (ii), (v).
- C. (ii), (i), (iii), (iv), (v).
- D. (ii), (iv), (iii), (i), (v).
Question 12.
A farmer practicing stall feeding ¡s likely to feed animals on .
- A. pasture and fodder
- B. pasture and concentrates
- C. fodder and concentrates
- D. concentrates only.
Question 13.
Which of the following statements is true about Vena Cava? It carries
- A. deoxygenated blood
- B. blood from the lungs
- C. blood under high pressure
- D. blood from the heart.
Question 14.
Which of the following materials are both opaque?
- A. Mirror and fresh milk.
- B. Paper smeared with oil and frosted glass.
- C. Fresh milk and frosted glass.
- D. Mirror and paper smeared with oil.
Question 15.
Which one of the following pairs is a source of electricity?
- A. Dam and a dynamo.
- B. Wind-driven turbine and a dam.
- C. Torch and a dynamo.
- D. Dry cell and a geothermal generator.
Question 16.
Which of the following statements is true about cumulus clouds?
- A. Their presence is a sign of rain.
- B. Appear at low altitude and spread out in flat layers.
- C. They are shaped like mountains.
- D. They are dark grey in colour.
Question 17.
Which of the following planets are in the 2nd and 6th positions from the sun?
- A. Mars and Jupiter.
- B. Venus and Saturn.
- C. Earth and Saturn.
- D. Venus and Jupiter.
Question 18.
In which of the following pairs of levers is the load, effort and fulcrum likely to be in similar positions when in use?
- A. Crowbar and claw hammer.
- B. Wheelbarrow and spade.
- C. Crowbar and spade.
- D. Claw hammer and wheelbarrow.
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Question 19.
Which of the following pairs of objects is correctly classified into magnetic and non-magnetic?
Magnetic Non-magnetic
- A. Glass sheet Tin can.
- B. Steel needle Pencil lead.
- C. Copper coin Steel wool.
- D. Razor blade Staple pin.
Question 20.
The diagram below represents a set-up that is used to demonstrate a certain aspect of matter
The aspect investigated is
- A. radiation
- B. convection
- C. conduction
- D. expansion.
Question 21.
The following are uses of some components of air:
(i) germination
(ii) preserving soft drinks
(iii) electric bulbs
(iv) burning.
Which two uses are for the component that makes up 21% of air?
(ii) preserving soft drinks
(iii) electric bulbs
(iv) burning.
Which two uses are for the component that makes up 21% of air?
- A. (i) and (iii).
- B. (ii) and (iii).
- C. (i) and (iv).
- D. (ii) and (iv).
Question 22.
A pupil was walking towards the northern direction past an air strip and noticed a windvane pointing to her right. In which direction was the wind blowing from?
- A. East.
- B. South.
- C. North.
- D. West.
Question 23.
The diagram below represents a simple electromagnet.
Which of the following energy transformations occur in the electromagnet?
- A. Electrical—> Magnetic —> Chemical.
- B. Chemical —> Magnetic —> Electrical.
- C. Chemical —> Electrical —> Magnetic.
- D. Magnetic —> Chemical —> Electrical.
Question 24.
Vaccines given at birth protect an infant against
- A. diphtheria and tuberculosis
- B. tuberculosis and poliomyelitis
- C. tetanus and diphtheria
- D. whooping cough and poliomyelitis.
Question 25.
Farmers apply farm yard manure to the soil to
- A. improve soil structure
- B. release nutrients needed by plants immediately
- C. provide specific nutrients
- D. provide nutrients ¡n right amounts.
MORE STD 8 REVISION RESOURCES
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FULL SET EXAMS FROM PLAYGROUP TO STANDARD 8
https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT -
DOWNLOAD MORE KCPE 2013 PAST PAPERS AND MARKING SCHEMES
​https://www.atikaschool.org/kcpe-past-papers-and-answer/kcpe-2013-past-papers-questions-answers-and-reports
​KCPE PAST PAPERS 2012 SCIENCE REPORT
The KCPE Science Syllabus consists of concepts in Agriculture, Science, Home Science and Emerging issues like environment and HIV/AIDS. 2012 was the seventh time the Syllabus was being tested. The questions were sampled from all the topics in the syllabus with all cognitive levels tested.
GENERAL PERFORMANCE OF CANDIDATES
The table below gives a summary on the candidature mean raw mark and standard deviation in Science for the years 2007, 2008, 2009, 2010, 2011 and 2012.
GENERAL PERFORMANCE OF CANDIDATES
| YEAR | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
| NUMBER SAT | 698,367 | 688,049 | 719,376 | 739,620 | 766,712 | 811,706 |
| MEAN RAW MARK | 29.72 | 27.62 | 29.96 | 29.82 | 33.63 | 32.02 |
| STANDARD DEVIATION | 9,20 | 7.40 | 8.69 | 8.94 | 9.11 | 9.51 |
From the table, the year 2012 KCPE Science performance was slightly lower compared to the year 2011 however, there was an improvement in the standard deviation compared to the years 2011, 2010, 2009, 2008 and 2007. This is an indication that the paper fairly discriminated the different abilities of the candidates. The candidature increased by 5.87% in 2012 compared to a 3.66 % increase in 2011.
SYLLABUS COVERAGE
| SN | TOPIC | NO. OF ITEMS | PERCENTAGE |
| 1.0 | HUMAN BODY | 3 | 06 |
| 2.0 | HEALTH EDUCATION | 2 | 04 |
| 3.0 | WEATHER AND ASTRONOMY | 2 | 04 |
| 4.0 | PLANTS | 4 | 08 |
| 5.0 | ANIMALS | 6 | 12 |
| 6.0 | WATER | 3 | 06 |
| 7.0 | MAKING WORK EASIER | 4 | 08 |
| 8.0 | PROPETIES OF MATTER | 8 | 16 |
| 9.0 | ENERGY | 8 | 16 |
| 10.0 | FOOD AND NUTRITION | 4 | 08 |
| 11.0 | ENVIRONMENT | 2 | 04 |
| 12.0 | SOIL | 4 | 08 |
| TOTAL | 50 | 100 |
The number of items per topic is determined by the number of lessons allocated to each topic in the Primary Science Spiral Syllabus.
ANALYSIS OF PERFORMANCE IN SCIENCE ITEMS
​The figure 6 below shows the facility index of each of the 50 Questions offered in 2012 KCPE Science.
Any item scored by 30% and below of the candidates is considered as having been poorly performed. in the 2012 KCPE Science, three items had a facility index below 30%. The three questions and the percentage of candidates choosing the correct response for each are shown in the table below.
Question with a facility Index of 30% and below
| Question Number | 12 | 28 | 49 |
|
% of candidates choosing the correct response |
25.58 | 18.75 | 19.85 |
Question 12
The following arc statements about how different simple machines make work easier.
(i) Making the slope gentle.
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
A. (i) and (iv).
B. (i) and (ii).
C. (ii) and (iii).
D. (iii) and (iv).
(i) Making the slope gentle.
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
A. (i) and (iv).
B. (i) and (ii).
C. (ii) and (iii).
D. (iii) and (iv).
Response Patterns
| OPTION | A | B | C | D* | NO ANSWER |
| % CHOOSING THE OPTION | 7.52 | 7.83 | 57.83 | 25.58 | 1.19 |
| MEAN MARK IN OTHER QUESTIONS | 22.64 | 25.19 | 33.95 | 34.78 | 26.36 |
Single fixed pulleys are taught in class eight under the topic Making Work Easier (Sub-topic Simple Machines). Learners are required to investigate how single fixed pulleys make work easier. A single fixed pulley only makes work easier by changing the direction of the force applied, it is easier to pull the load downwards than upwards because of the force of gravity. The effort applied is equal to the load if friction is completely eliminated at the axle. Otherwise more effort than load is applied if some friction exists in the pulley.
Many candidates went for an incorrect response (option C) although (ii) (reducing the effort applied) makes the option wrong. The effort applied in an ideal pulley is equal to the load.
In the key (option D), (iv) (reducing friction) is correct because the pulley rotates at (he axle with the main aim of eliminating friction. Fewer candidates (25.58%) chose the correct response but those who selected it were the very bright with a raw mean mark of 34.78.
Instruction in schools should target the objective which clearly states that the candidates are required to know the principle on which a single fixed pulley works. Performance on this item indicates that the objective may not have been adequately addressed during instruction.
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Question 28
Which of the following practices will NOT result in a person getting an electric shock?
- A. Touching sockets with wet hands.
- B. Putting pencils in sockets.
- C. Overloading the sockets.
- D. Putting iron nails in sockets.
Response Patterns
| OPTION | A | B | C* | D | NO ANSWER |
| % CHOOSING THE OPTION | 7.16 | 61.82 | 18.75 | 11.01 | 1.2 |
| MEAN MARK IN OTHER QUESTIONS | 23.79 | 33.22 | 32.87 | 29.71 | 26.94 |
The Question was from the topic Energy (sub-topic Electricity). Learners are required to investigate good and poor conductors of electricity, and describe safety measures when dealing with electricity. Many candidates also went for an incorrect response (option B) including the very bright ones as indicated by the high raw mean mark of 33.22 compared to 32.87 of those who selected the correct response (option C). Most pencils are made of wood and graphite. Wood is a poor conductor while graphite is a good conductor. Most candidates could have looked at a pencil as wood and ignored graphite leading to the selection of the incorrect response.
On safety measures, the learner is required to describe safety measures when dealing with electricity. One of the safety measures is not to put pencils into sockets. The likely description to accompany it is that it can cause electric shock and damage the socket.
Candidates may have missed these details during instruction and this could have led to the observed performance on the item.
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Question 49
Which one of the following statements is TRUE about manures? They
- A. increase the growth of weeds
- B. release specific nutrients to the soil
- C. destroy micro-organism in the soil
- D. cause pollution of the soil.
Response Patterns
| OPTION | A* | B | C | D | NO ANSWER |
| % CHOOSING THE OPTION | 19.85 | 68.5 | 7.82 | 2.43 | 1.34 |
| MEAN MARK IN OTHER QUESTIONS | 36.03 | 32.06 | 24.94 | 23.58 | 26.90 |
The Question was from the topic Soil (sub-topic Manures). Most candidates (68.5%) went for an incorrect response (option 13). Manures do not release specific nutrients. They release a variety of plant nutrients that are not specific. This is the main difference between manures and inorganic fertilizers which should be emphasized during instruction. However, the correct response was chosen by the bright candidates.
​GENERAL COMMENTS
Generally 2012, KCPE Science was well done with a Mean raw mark of 32.02 out of the possible 50 marks. The Mean raw mark for females was 30.30 compared to 31.99 in 2011. The one for males was 33.67 compared to 35.55 in 2011. Teachers should strive to bridge this gap by using approaches that motivate female pupils towards sciences at an early stage in learning. The gap should be adequately addressed at this level to ensure that it is not carried to the next levels of learning.
​KCPE PAST PAPERS 2012: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]
Question 26.
A card made in the shape of letter E and numbers 1,2 and 3 written on it was placed in front of a mirror as shown in the diagram below.
Which of the following CORRECTLY represents the image as seen in the mirror?
Question 27.
The reason why improved jikos have a clay lining is to
- A. reduce the amount of heat loss
- B. reduce the space for charcoal
- C. make charcoal light faster
- D. make the jiko last longer.
Question 28.
Which of the following practices will NOT result in a person getting an electric shock?
- A. Touching sockets with wet hands.
- B. Putting pencils in sockets.
- C. Overloading the sockets.
- D. Putting iron nails in sockets.
Question 29.
Which of the following groups of sources of energy are renewable?
- A. charcoal, kerosene, sawdust.
- B. water, firewood, animal dung.
- C. Diesel, wind, natural gas.
- D. Biogas, petrol, coal.
Question 30.
Which of the following pairs of food is preserved by smoking, salting and drying?
- A. Meat and mushrooms.
- B. Beans and fish.
- C. Mushrooms and beans.
- D. Meat and fish.
Question 31.
Which of the following is the MAIN reason why eating bread after expiry date is discouraged? The bread could have
- A. lost nutrients
- B. a bad taste
- C. some micro-organisms
- D. changed its colour.
Question 32.
Which of the following pairs consists of diseases caused by lack of minerals in the diet?
- A. Anaemia and rickets.
- B. Kwashiokor and anaemia.
- C. Marasmus and Kwashiokor.
- D. Rickets and marasmus.
Question 33.
A hilly area with deep channels is LIKELY to be experiencing
- A. sheet erosion
- B. gulley erosion
- C. nil erosion
- D. splash erosion.
Question 34.
The diagram below shows an improvised rain gauge.
The collecting bottle should
- A. have the funnel sealed to its mouth
- B. be wide to collect enough water
- C. be placed above the ground
- D. be transparent for easy reading.
Question 35.
The diagram below represents a model of the solar system prepared by class six pupils.
The mistake made in the model was
- A. using threads instead of wires
- B. placing a ball of clay next to the one representing the sun
- C. placing two balls of clay on one thread
- D. using balls of clay of different sizes.
Question 36.
The MAIN reason why mothers are encouraged to breast feed their infants is because breast milk
- A. boosts immunity of the infant
- B. is free from disease causing germs
- C. is at the right temperature for infants
- D. is easily digested by infants.
Question 37.
A person in the incubation period of HIV infection will show
- A. signs and symptoms but test negative
- B. no signs and no symptoms but test positive
- C. no signs, no symptoms and test negative
- D. signs, symptoms and test positive.
Question 38.
Which of the following is a preventive measure against the spread of tuberculosis?
- A. Clearing bushes around houses.
- B. Boiling drinking water.
- C. Proper disposal of human waste.
- D. Living in a well ventilated house.
Question 39.
In which of the following are characteristics of cumulus and nimbus clouds CORRECTLY placed?
Question 40.
For two masses X and Y, the mass of X was twice that of Y. The diagram below shows a set-up that was used to investigate how thetwo masses balance at positions Q, R, S and T on a seesaw.
Which of the following was a correct observation about the investigation?
Question 41.
The diagram below represents a simple electric circuit
Which of the following energy transformations would take place when the switch is on?
- A. Chemical—>electrical——>heat—>light.
- B. Electrical—>chemical—>Light--->heat.
- C. Chemical—>electrical——>Light--->heat.
- D. Electrical—>light—>chemical—>heat.
Question 42.
Which of the following practices LEAST pollutes the soil?
- A. Spraying crops to kill pests.
- B. Burning plant wastes in the farm.
- C. Disposing of animal wastes in the farm.
- D. Burying plastics in the soil.
Question 43.
In an investigation, equal amounts of soap was added to equal amounts of water samples W and Z obtained from different sources.
The following observations were made:
(i) W formed lather.
(ii) Z formed suspended particles.
Which of the following statements about W and Z is NOT CORRECT?
(i) W formed lather.
(ii) Z formed suspended particles.
Which of the following statements about W and Z is NOT CORRECT?
- A. W may have fewer minerals.
- B. Z may form lather after boiling.
- C. W can form scales in kettles.
- D. Z wastes soap when washing.
Question 44.
Which of the following consists of materials with a definite volume and definite shape?
- A. Water, bottle, stone.
- B. Paper, pin, ink.
- C. Kerosene, cooking oil, milk.
- D. Sand, flour, sugar.
Question 45.
Which of the following practices will conserve soil?
- A. Using dry grass for mulching.
- B. Burning vegetation on farms.
- C. Ploughing along the slope.
- D. Burying plastic materials.
Question 46.
Soil becomes waterlogged due to
- A. its colour
- B: the size of its particles
- C. the absence of small animals in it
- D. the amount of air in it.
Question 47.
Which of the following is the CORRECT procedure that is used to obtain clear water from muddy water?
- A. Filtering and decanting.
- B. Evaporating and filtering.
- C. Decanting and filtering.
- D. Evaporating and decanting.
Question 48.
- A. Spraying and de-worming.
- B. Herding and dipping.
- C. De-worming and rotational grazing.
- D. Dipping and spraying.
Question 49.
​Which one of the following statements is TRUE about manures? They
- A. increase the growth of weeds
- B. release specific nutrients to the soil
- C. destroy micro-organism in the soil
- D. cause pollution of the soil.
Question 50.
The following are activities that pollute the environment.
(i) Burning charcoal in a closed room.
(ii) Oil spillage from tankers.
(iii) Using diesel as fuel in vehicles.
(iv) Dumping vegetable waste.
Which activities pollute air?
(ii) Oil spillage from tankers.
(iii) Using diesel as fuel in vehicles.
(iv) Dumping vegetable waste.
Which activities pollute air?
- A. (i) and (iv).
- B. (ii) and (iv).
- C. (ii) and (iii).
- D. (i) and (iii).
​KCPE PAST PAPERS 2012: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]
Question 01.
Which of the following is a tuber crop?
- A. Onion.
- B. Carrot.
- C. Pineapple.
- D. Cabbage.
Question 02.
A beam balance is used for
- A. measuring volume of objects
- B. comparing mass of different objects
- C. measuring height of objects
- D. comparing size of different objects.
Question 03.
In which of the following groups of activities is friction NOT required?
- A. Writing and erasing.
- B. Skating and braking.
- C. Flying and swimming.
- D. Walking and riding.
Question 04.
Animals provide plants with
- A. support and carbon dioxide
- B. manure and oxygen
- C. carbon dioxide and pollination
- D. pollination and oxygen.
Question 05.
Which of the following statements about blood vessels in the human body is CORRECT?
- A. All veins carry de-oxygenated blood.
- B. Blood pressure in arteries is higher than in veins.
- C. Arteries have valves that control flow of blood.
- D. Arteries have thinner walls than those of veins.
Question 06.
Which of the following CORRECTLY represents the path taken by food from the oesophagus?
- A. Stomach —> small intestines —> large intestines —> rectum —> anus.
- B. Small intestines —> large intestines —>stomach —> rectum —> anus.
- C. Stomach —> large intestines —> small intestines —> rectum ----> anus.
- D. Large intestines —> stomach ---> small intestines —> rectum —> anus.
Question 07.
Which of the following types of human teeth is CORRECTLY matched to its function?
Teeth Function
- A. Incisors Tearing and cutting.
- B. Canines Tearing and crushing.
- C. Premolars Cutting and grinding.
- D. Molars Crushing and grinding.
Question 08.
A plant which has deep and widely spread root system is LIKELY to have
- A. broad leaves
- B. many leaves
- C. succulent stems
- D. weak stems.
Question 09.
Which of the following groups of crops consists of cereals ONLY?
- A. Peas, beans and green grams.
- B. Maize, rice and sorghum.
- C. Millet, cow peas and maize.
- D. Green grams, sorghum and rice.
Question 10.
The diagrams below represent two levers E and F with different positions of load, effort and fulcrum.
Question 11.
Which of the following pairs of plants is CORRECTLY matched with the type of root system?
Tap root Fibrous root
- A. Grass Wheat
- B. Tomato Blackjack
- C. Coconut Acacia
- D. Kale Onion
Question 12.
The following are statements about how different simple machines make work easier.
(i) Making the slope gentle.
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
(ii) Reducing the effort applied.
(iii) Changing direction of the force applied.
(iv) Reducing friction.
Which of the statements apply to a single fixed pulley?
- A. (i) and (iv).
- B. (i) and (ii).
- C. (ii) and (iii).
- D. (iii) and (iv).
Question 13.
Which of the following groups of animals consists ONLY of invertebrates?
- A. Crab, newt and snail.
- B. Centipede, snail and spider.
- C. Newt, centipede and slug.
- D. Slug, frog and crab.
Question 14.
Which of the following statements is TRUE?
- A. Fish have constant body temperature.
- B. Birds have varying body temperature.
- C. Young ones of amphibians live on land.
- D. Reptiles breathe through the lungs.
Question 15.
Which of the following are examples of herbivores, carnivores and omnivores?
Question 16.
Which of the following pairs consists only of animals with scales?
- A. Toad and duck.
- B. Turtle and salamander.
- C. Turtle and duck.
- D. Salamander and toad.
Question 17.
The following are some practices that help prevent the spread of water borne diseases.
(i) Using toilets for urination.
(ii) Washing fruits before eating them.
(iii) Washing hands before eating.
(iv) Wearing gumboots when walking in stagnant water.
Which practices will help control the spread of bilharzia?
(ii) Washing fruits before eating them.
(iii) Washing hands before eating.
(iv) Wearing gumboots when walking in stagnant water.
Which practices will help control the spread of bilharzia?
- A. (i) and (ii)
- B. (i) and (iv)
- C. (ii) and (iii)
- D. (iii) and (iv)
Question 18.
Transfer of heat by convection takes place in
- A. gases and liquids
- B. solids and liquids
- C. solids and vacuum
- D. gases and vacuum.
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Question 19.
The diagram below represents the processes I, II, III and IV that are involved in change of states of matter.
Question 20.
The pie chart below shows proportions of G, H, J and K that represent the components of air.
Question 21.
Which of the following factors makes wax to float on water?
- A. Shape of material.
- B. Type of material.
- C. Size of material.
- D. Mass of material.
Question 22.
In which of the following are both materials CORRECTLY grouped as magnetic and non-magnetic?
Magnetic Non-magnet
- A. Copper Zinc.
- B. Zinc Steel.
- C. Aluminium Copper.
- D. Steel Aluminium.
Question 23.
The following are activities carried out to investigate the effect of heat on a liquid.
(i) Placing the bottle on a source of heat.
(ii) Filling the bottle with coloured water.
(iii) Fixing a straw on the cork.
(iv) Closing the bottle tightly with the cork.
Which one of the following is the CORRECT ORDER of the activities?
(ii) Filling the bottle with coloured water.
(iii) Fixing a straw on the cork.
(iv) Closing the bottle tightly with the cork.
Which one of the following is the CORRECT ORDER of the activities?
- A. (ii), (iii), (iv), (i).
- B. (iii), (iv), (ii), (i).
- C. (ii), (i), (iii), (iv).
- D. (iii), (ii), (i), (iv).
Question 24.
The diagram below shows a set-up that can be used to investigate the effect of heat on matter.
The effect investigated is
- A. gases change state when heated
- B. solids expand when heated
- C. gases expand when heated
- D. solids change state when heated.
Question 25.
The diagram below represents a set-up in which a ruler is fixed to a desk and its free end pulled to positions L, M, and N. At each position the free end is released to produce sound.
The set-up can be used to investigate
- A. special sounds
- B. loud and soft sound
- C. direction of sound
- D. noise pollution.
KCPE PAST PAPERS 2005 SCIENCE QUESTIONS AND ANSWERS
Question 26.
Which one of the following ¡s NOT required when finding the density of a regular solid?
- A. Spring balance
- B. Ruler
- C. Overflow can
- D. String
Question 27.
Which one of the following statements about water is TRUE?
- A. Water mixes with all liquids.
- B. Water has definite size
- C. Water has definite shape
- D. Water is a good. conductor of heat.
Question 28.
The BEST way of handling tin cans after using the contents is by:
- A. burying them deep in the soil:
- B. smelting and moulding them into other products.
- C. throwing them in the pit latrine.
- D. throwing them in the river.
![KCPE PAST PAPERS 2005: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]](/uploads/6/0/4/0/60406393/edited/dscf4204.jpg)
Question 29.
Which one of the following pairs of levers has the position of load, fulcrum and effort as a forearm?
- A. Fishing rod and pliers.
- B. Spade and tongs
- C. Bottle top opener and nutcracker
- D. Scissors and claw hammer.
Question 30.
Which one of the following statements is about a windsock is TRUE? A wind sock
- A. Measures speed of wind
- B. Shows direction wind is blowing from
- C. Shows strength of wind .
- D. Works the same way as a wind vane.
Question 31.
Which one of the following NEED NOT be the same when comparing capillarity in different types of soil?
- A. Diameter of the tubes.
- B. Amount of each type of soil.
- C. Time allowed for the experiment.
- D. Amount of water used.
Question 32.
Which one of the following characteristics of sandy soil DOES NOT explain why water drains through it easily?
- A. Rough texture
- B. Large particles
- C. Large air spaces
- D. Shinny particles
Question 33.
Which one of the following drugs has similar effects to miraa (khat) when abused?
- A. Heroin
- B. Tobacco
- C. Mandrax
- D. Excessive alcohol
Question 34.
Which one of the following correctly shows the path taken by urine from the kidneys?
- A. Ureter—> Urethra —>Bladder.
- B. Urethra —>Ureter---> Bladder.
- C. Ureter—> Bladder —> Urethra
- D. Urethra —> Bladder —>ureter
Question 35.
Which one of the following groups consist of only plants with fibrous roots?
- A. Cowpeas, maize, wheat.
- B. Rice, millet, maize
- C, Carrot, millet, wheat
- D. Cowpeas, rice, carrot
Question 36.
The component of air used in making plant food is
- A. 0.03%
- B. 0.97%
- C. 21%
- D. 78%
Question 37.
Which one of the following lists consists of only drugs of abuse that are prohibited in Kenya?
- A. Khat, tobacco, cocaine.
- B. Cocaine, heroin, mandrax.
- C. Bhang, beer, tobacco.
- D. Cobbler’s glue, khat, beer
Question 38.
Which two of the following processes involve loss of heat to the surroundings?
- A. Melting and freezing.
- B. Evaporation and condensation
- C. Freezing and condensation.
- D. Melting and evaporation.
Question 39.
The leaf of cactus plant
- A. Reduces water loss.
- B. Makes plant food.
- C. Stores water.
- D. Allows gaseous exchange.
Question 40.
Which one of the following DOES NOT affect floating and sinking of an object?
- A. Size
- B. Shape
- C. Density
- D. Weight
Question 41.
Which one of the following soil components is LEAST affected when soil in a container is heated?
- A. air
- B. water
- C. organic matter
- D. mineral salts
Question 42.
Which one of the following DOES NOT undergo the stages of egg, larva, pupa and adult?
- A. Wasp
- B. Locust
- C. Bee
- D. Moth
Question 43.
Which one of the following substances will form a salt and water only when mixed with an acid?
- A. Ash solution.
- B. Chalk powder.
- C. Clover juice.
- D. Magadi soda.
Question 44.
Which one of the following pairs of substances will give the same colour when mixed with flower extract
- A. Lemon juice and lime solution.
- B. Aspirin solution and actual solution
- C. Lemon solution and aspirin solution
- D Lime solution and actual solution
Question 45.
Sifting, picking and sieving are some methods of separating mixtures. Which one of the following mixtures can be separated by all the three methods?
- A. Maize and beans
- B. Sand and rice.
- C. Maize flour and small pieces of iron.
- D. Sugar and tiny pieces of glass.
Question 46.
Which one of the following is NOT a reason why drugs should be stored in their properly labelled container? To avoid
- A. Contamination.
- B. Getting expired
- C. Getting spoilt.
- D. Wrong usage.
Question 47.
Which one of the following material is magnetic?
- A. Aluminum plate.
- B. Steel razor blade
- C. Silver coin.
- D. Copper ring.
Question 48.
The following are steps followed by pupils when making a certain tool.
(i) Flattening one end of a nail
(ii) Fixing the flattened end into a piece of wood.
(iii) Cutting off the head of the nail.
(iv) Flattening and sharpening the exposed nail.
The tool is a
(ii) Fixing the flattened end into a piece of wood.
(iii) Cutting off the head of the nail.
(iv) Flattening and sharpening the exposed nail.
The tool is a
- A. Hammer
- B. Chisel
- C. Drill
- D. Saw
Question 49.
The diagram below represents a loaded wheelbarrow
The effort needed to push the wheelbarrow can be reduced by increasing the length of the part between
A. P and R
B. Q and R
C. R and S
D. S and T
A. P and R
B. Q and R
C. R and S
D. S and T
Question 50.
The diagram below represents an arrangement of gear wheels
When wheel H is rotated once in a clockwise direction
- A. wheel G rotates three times anticlockwise and J twice anticlockwise
- B. wheel G rotates three times anticlockwise and J twice clockwise
- C. wheel F rotates once clockwise and G three times clockwise
- D. wheel F rotates once anticlockwise and J twice anticlockwise.
MORE STD 8 REVISION RESOURCES
K.C.P.E PAST PAPERS 2005 SCIENCE QUESTIONS AND ANSWERS
Question 01.
Which one of the following sources of energy is renewable?
- A. Kerosene
- B. Biogas from cow dung
- C. Coal .
- D. Cooking gas from crude oil
Question 02.
Which one of the following is the MAIN reason why the inside of a solar drier is painted black?
- A. To prevent rusting.
- B. To make it last longer.
- C. To make it absorb heat.
- D. To decorate it.
Question 03.
The image formed in a pinhole camera is:
- A. upright and smaller than the object
- B. upside down and formed on the screen
- C. upside down and same size as the object
- D. upright and formed on the screen
![KCPE PAST PAPERS 2005: SCIENCE QUESTIONS AND ANSWERS [QNS 01-25]](/uploads/6/0/4/0/60406393/edited/dsc00886.jpg)
Question 04.
In a box guitar high sound can be produced without changing the tension of the strings by
- A: Plucking the strings hard.
- B. Increasing the lengths of the string.
- C. Using thinner strings.
- D. increasing the size of the box.
Question 05.
Below is an energy transformation: Chemical —> electrical —> heat —> light
In which one of the following does the energy transformation shown take place when used to
produce light.
produce light.
- A. Geothermal
- B. Car battery
- C. Electric bulb
- D. Bicycle dynamo
Question 06.
Flowers P, Q, R and S have the following characteristics:
P: Large and loosely held anthers
Q: Presence of nectar
R: Strong scent
S. Light pollen grains
Which two flowers are wind pollinated?
Q: Presence of nectar
R: Strong scent
S. Light pollen grains
Which two flowers are wind pollinated?
- A. P and S
- B. Q and R
- C. P and R
- D. Q and S
Question 07.
A fish is able to move EASILY in water because it
- A. has fins
- B. has hard scales
- C. is streamlined
- D. has gills
Question 08.
Which one of the following plants stores food in the stem?
- A. Carrot
- B. Irish potato
- C. Sweet potato
- D. Onion
Question 09.
A food chain in grassland is shown below
Grass —>Grasshoppers---> Frogs —> Snakes —>Secretary birds.
Which one of the following would most likely happen immediately all snakes are killed?
Which one of the following would most likely happen immediately all snakes are killed?
- A. The frogs would decrease in number.
- B. Grasshoppers would increase in number
- C. The amount of grass would increase
- D. Secretary birds would increase in number
Question 10.
The diagram below represents a section of a heart of a mammal.
Which one of the following statements is TRUE?
- A. K carries blood into the heart whereas L takes it out.
- B. K has a thin wall whereas L has a thick wall.
- C. K carries deoxygenated blood whereas L carries oxygenated.
- D. K has valves whereas L has no valves.
Question 11.
The following are the activities which are carried out when comparing strengths of acids in fruit juices.
(i) counting the number of drops of each fruit juice required to change the color
(ii) adding the different fruit juice drop by drop in each of the bottle tops
(iii) adding equal amounts of indicator in each of the bottle tops.
(iv) putting equal amounts of wood ash solution into different bottle tops
Which one of the following is the CORRECT order of the activities?
(ii) adding the different fruit juice drop by drop in each of the bottle tops
(iii) adding equal amounts of indicator in each of the bottle tops.
(iv) putting equal amounts of wood ash solution into different bottle tops
Which one of the following is the CORRECT order of the activities?
- A. (iv) (iii) (ii) (i)
- B. (iv) (ii) (iii) (i)
- C. (iii) (i) (iv) (ii)
- D. (ii) (iii) (i) (iv)
Question 12.
The diagram below represents a setup that can be used to demonstrate a certain property of air.
Which property of air is demonstrated by the set up?
- A. Air exerts pressure in all directions.
- B. Air occupies space
- C. Part of air is used in burning
- D. Air expands when heated.
Question 13.
Which one of the following will pollute water ONLY?
- A. Untreated sewage
- B. Used oil
- C. Part of air is used in burning
- D. Air expands when heated.
Question 14.
The MAIN reason why the government conserves wildlife is to have
- A. Meat from wild animals.
- B. Plant and animal products.
- C. A balance of nature.
- D. Animals for export.
Question 15.
When an object is thrown up in the air ¡t falls because it
- A. is pulled by the earth
- B. exerts pressure
- C. is resisted by air
- D. is as heavy as air
Question 16.
The diagram below represents a simple machine in use.
The machine is an example of
- A. an inclined plane .
- B. a wheel and axle
- C. a lever
- D. a pulley
Question 17.
The reason for using rollers when moving heavy objects on a floor is to
- A. Make objects lighter.
- B. Avoid damaging the floor
- C. Increase speed of moving objects.
- D. Reduce force that opposes movements.
Question 18.
The diagram below represents a weather instrument constructed by a group of pupils who made a mistake while constructing it
The mistake made during the construction was
- A. Closing the mouth of the bottle.
- B. Using little amount of coloured water. .
- C. Having the container with coloured water open. .
- D. Having the scale reading from the bottom.
Question 19.
Which of the following planets are in the second, fifth and eighth positions respectively from the Sun?
- A. Uranus, Jupiter, Neptune.
- R. Mars, Saturn, Neptune
- C. Venus, Jupiter, Neptune.
- D. Earth, Saturn, Uranus.
Question 20.
The function of plasma is to
- A. Fight germs.
- B. Combine with oxygen.
- C. Help in clotting of blood.
- D. Transport food.
Question 21.
Which pair of characteristics is common to lizard, toad, hawk and platypus?
- A. Lays eggs breathes by lungs.
- B. Body temperature varies, breathe by lungs
- C. Have scales lay eggs.
- D. Body temperature varies, have scales.
Question 22.
The table below shows characteristics of four different fruits U, V, W and X
Which one of the fruits is likely to be dispersed by exploding?
- A. U
- B. V
- C. W
- D. X
Question 23.
The diagram below represents a foot of a certain bird.
Question 24.
Which one of the following parts of a flower is NOT CORRECTLY matched with its function?
Question 25.
A glass containing ice cubes was placed in the open. After some time the outer surface of the glass became wet. This shows that
A. Air contains water vapour
B. Ice melts to form water
C. Air is a mixture of gases
D. air can be cooled.
B. Ice melts to form water
C. Air is a mixture of gases
D. air can be cooled.
MORE STD 8 REVISION RESOURCES
KCPE PAST PAPERS 2004 SCIENCE QUESTIONS AND ANSWERS
Question 26.
Which one of the following sources of energy is non-renewable?
- A. Kerosene
- B. firewood
- C. solar
- D. Biogas
Question 27.
If the size of the hole in a pinhole camera is increased, the image formed id?
- A. enlarged
- B. blurred
- C. upright
- D. not real
Question 28.
A stone at the bottom of a pond appears nearer the surface due to
- A. refraction
- B. dispersion
- C. diffraction
- D. reflection
Question 29.
Which one of the following shows the correct order of the parts in the human eye through which light passes?
- A. Cornea —>pupil—> lens —> retina
- B. Pupil —>lens-—> cornea—> retina
- C. Pupil —> cornea —> lens—> retina
- D. Cornea —> lens —>pupil—> retina
Question 30.
Which. one of the following parts of a passion plant is modified for climbing?
- A. Stem
- B. Branch
- C. Leaf
- D. Bud
Question 31.
Which one of the following waste materials is not a product of excretion?
- A. Sweat
- B. Urine
- C. Carbon dioxide
- D. Faeces
Question 32.
Which one of the following describes cross-pollination?
- A. The transfer of pollen grains from the anther to the stigma of the same flower.
- B. The transfer of pollen grains from the anther to the stigma of different flowers on plants of different kinds.
- C. The transfer of pollen grains from the anther to the stigma of another flower on the same plant
- D. The transfer of pollen grains from the anther to the stigma of different flowers on plants of the same kind.
Question 33.
The chart below represents approximate percentage of the components of air.
Which portion represents the gas that is necessary for burning?
- A. P
- B.Q
- C.R
- D.S
Question 34.
Which one of the following activities is correct when comparing the strength of acids in fruit juices to ash solution add
- A. indicator and then fruit juice drop by drop
- B. fruit juice and then indicator drop by drop
- C. equal amount of fruit juice and then indicator drop by drop
- D. equal amounts of indicator and fruit juice
Question 35.
The diagram below represents a set up that is used to demonstrate a certain property of air
The demonstration shows that air __________________
- A. is dissolved in water
- B. has weight
- C. occupies space
- D. exerts pressure
Question 36.
Which one of the following statements about a wind vane is NOT TRUE?
- A. The tail should be larger than the arrowhead
- B. It should be placed in an open place
- C. The arrow points the direction in which the wind is blowing .
- D. Its compass points should correspond to the geographical compass points.
Question 37.
In the diagram below P, Q, R and S represent different layers of materials in a water filter.
Question 38.
Which one of the following materials CANNOT be recycled?
- A. Rubber tyres
- B. Glass bottles
- C. Candle wax
- D. Saw dust
Question 39.
Which one of the following pairs of machines consists of levers only?
- A. Pliers and wedge
- B. Crowbar and nutcracker
- C. Screw and scissors .
- D. Bottle opener and knife
Question 40.
Clothes on a clothesline took too long to dry.
The weather was most likely .
- A. dry and calm
- B. cold and windy
- C. dry and cold
- D. cold and calm
Question 41.
Standard five pupils observed a flower with brightly coloured petals in their compound.
Which one of the following is likely to be the other characteristics of that flower?
- A. Feathery stigma and few pollen grains
- B. Large pollen grains and feathery stigma
- C. Sticky stigma and few pollen grains
- D. Light pollen grains and sticky stigma
Question 42.
Which one of the following statements about blood circulation is TRUE?
- A. Aorta receives oxygenated blood from the left auricle.
- B. Oxygenated blood from the lungs is received by the aorta.
- C. Pulmonary vein takes oxygenated blood to the lungs.
- D. Pulmonary artery receives deoxygenated blood from the right ventricle.
Question 43.
Which one of the following is a part of the embryo of a seed?
- A. Micropyle
- B. Endosperm
- C. Radicle
- D. Cotyledon
Question 44.
Which one of the following is NOT important to consider when taking medicine?
- A. The dose
- B. The date of manufacture
- C. Duration to complete dose
- D. How to store the medicine
Question 45.
Which one of the following characteristics is TRUE for both plants and animals? They
- A. move, use carbon dioxide
- B. make their food, grow
- C. reproduce, transpire
- D. excrete, respond to changes in the environment
Question 46.
Which one of the following practices is used for controlling pollution in soil, water and air?
- A. Avoiding dumping cans and plastic materials
- B. Treating chemical waste from factories.
- C. Burning rubbish in metallic or concrete structures.
- D. Avoiding excess use of fertilizers.
Question 47.
In which of the following cases is friction both an advantage and a disadvantage?
- A. dragging a heavy box along the floor
- B. moving parts of a machine
- C. climbing up a hill .
- D. drawing water from a well using rope
Question 48.
Coins were arranged in a pile as shown in the diagram below
When the coin at the bottom was knocked out suddenly using a ruler, it moved out leaving the pile intact. The pile remained intact because of
- A. friction
- B. gravity
- C. inertia
- D. weight
Question 49.
An inclined plane makes work easier by
- A. changing direction of effort
- B. increasing effort distance
- C. decreasing load distance
- D. decreasing the load
Question 50.
Which one of the following is NOT important when comparing solubility of solids in a liquid?
- A. Amount of the solid
- B. Size of containers used
- C. Temperature of liquid
- D. Amount of liquid
MORE STD 8 REVISION RESOURCES
KCPE PAST PAPERS 2004 SCIENCE QUESTIONS AND ANSWERS
Question 01.
After the incubation period the chick comes out of the shell by
- A. The mother cracking the shell open
- B. Cracking the shell open using its beak
- C. Growing bigger thus forcing the shell to Break.
- D. The shell cracking on its own using her beak.
Question 02.
Some curative drugs are also called.
- A. antibiotics
- B. vaccines
- C. stimulators
- D. painkillers
Question 03.
A jar used of measuring rainfall should be
- A. narrow
- B. wide
- C. short
- D. long
Question 04.
Which one of the following statements about adaptations in animals is NOT CORRECT?
- A. Cheetahs have sharp, curved claws to help them catch their prey
- B. Eagles have strong, curved beaks to help them cut and tear flesh.
- C. Crocodiles have saw-like teeth to help them grip their prey firmly.
- D. Snakes have fangs to hold their prey firmly
Question 05.
Which one of the following is formed first after fertilization?
- A. foetus
- B. embryo
- C. zygote
- D. sex cell
Question 06.
Which one of the following DOES NOT increase the strength of an electromagnet? Increasing the
- A. number of coils
- B. amount of current
- C. size of soft iron
- D. length of connecting wires
Question 07.
A change in the force of gravity on an object will change its
- A. mass
- B. weight
- C. volume
- D. density
Question 08.
In which one of the following machines is the effort equal to the load and the effort distance equal to the load distance?
- A. Inclined
- B. wheel and axle
- C. Lever
- D. single fixed pulley
Question 09.
The force that acts on a given area is called
- A. Weight
- B. gravity
- C. Pressure
- D. friction
Question 10.
Which of the following properties of clay soil would greatly contribute to flooding in an area?
- A. High capillary
- B. poor drainage
- C. Fine texture
- D. stickiness
Question 11.
The main reason why sandy soil is mixed with cement in building is because it
- A. drains well
- B. has large air spaces .
- C. has large particles .
- D. mixes easily with cement
Question 12.
When choosing a method of separating a mixture of liquid and a solid it is important to consider the
- A. density of the liquid
- B. size of particles of the solid
- C. density of the solid
- D. solubility of the solid
Question 13.
Which one of the following is NOT definite for liquids?
- A. Shape
- B. Volume
- C. Mass
- D. Density
Question 14.
In feeding relationships, mice belong to the same group as
- A. Vultures
- B. snakes
- C. Antelopes
- D. lions
Question 15.
The table below shows parts of the human digestive system and their functions
Question 16.
The following were reasons given by pupils to explain why smoke rises. It
(i) Has hot air in it
(ii) Is less dense
(iii) Has particles suspended in air
(iv) is cloudy
Which TWO reasons are correct?
(ii) Is less dense
(iii) Has particles suspended in air
(iv) is cloudy
Which TWO reasons are correct?
- A. (i) and (ii)
- B. (iii) and (iv)
- C. (ii) and (iii)
- D. (i) and (iv)
Question 17.
A one metre long piece of wood floats on water while a one centimetre long piece of iron rod sinks. This is because of difference In
- A. length
- B. material
- C. weight
- D. shape
Question 18.
The diagram below represents a fishing rod with points labeled P, Q, R and S.
When in use the fulcrum is at point
- A.P
- B.Q
- C.R
- D.S
Question 19.
The table below shows observations made when four soils samples P, Q, R and S were mixed with water and then rolled out to make ribbons
Soil sample Characteristic
P Held its shape.
Q Cracked .
R could not be rolled
S could not hold its shape.
Which one of he samples has the lowest capillarity?
P Held its shape.
Q Cracked .
R could not be rolled
S could not hold its shape.
Which one of he samples has the lowest capillarity?
- A.P
- B.Q
- C.R
- D.S
Question 20.
Which one of the following drugs causes drowsiness when abused?
- A. Cocaine
- B. Heroine
- C. Tobacco
- D. Khat
Question 21.
The diagram below represents an improvised liquid thermometer.
​Which one of the following improvements would make the instrument measure smaller changes in temperature?
- A. making the straw narrower
- B. colouring the water
- C. using a plastic bottle
- D. using a larger bottle
Question 22.
The chart below shows a simple classification of small animals.
Question 23.
Which one of the following practices helps to conserve soil by preventing soil erosion?
- A. crop rotation
- B. use of manure
- C. mulching
- D. planting cover crops
Question 24.
Which one of the following pairs of processes involves absorption of heat from the surrounding?
- A. Condensation and evaporation
- B. Freezing and condensation
- C. Melting and freezing
- D. Evaporation and melting
Question 25.
The diagram below shows the beak of a certain bird.
The bird most likely feeds on .
- A. insects
- B. nuts
- C. grains
- D. flesh
MORE STD 8 REVISION RESOURCES
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