KCPE PAST PAPERS 2005: SCIENCE QUESTIONS AND ANSWERS [QNS 26-50]

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.

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

• 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

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

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

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