KCPE PAST PAPERS 2004: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

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

• https://drive.google.com/open?id=1cdxLC-nRPWN1S47IUQNNEB81Aoar4AaT

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