Question 1

Plants are different from animals because they

A. have protoplasm
B. have chlorophyll
C. are able to respire
D. are able to reproduce sexually

Question 2

Which of the following conditions is not required for a current to flow through an electric circuit?

A. The circuit should be closed
B. A battery must be present
C. There must be connecting wires
D. A bulb must be connected in the circuit

Question 3

Which of the following examples is a source of energy?

A. Electricity
B. Heat
C. Light
D. Wood

Question 4

Heat is transferred from the bottom of water in a container to the top by

A. conduction
B. convection
C. radiation
D. conduction and radiation

Question 5

A mercury thermometer works on the principle that

A. solids expand on heating and contract on cooling.
B. liquids expand on heating and contract on cooling.
C. gases expand on heating and contract on cooling.
D. liquids evaporate when heated to a certain temperature.

Question 6

In which of the positions Q,R,S,T in the diagram below will a body have the greatest potential energy?

A. Q
B. R
C. S
D. T

Question 7

A solar cell produces electrical energy from

A. electromagnets
B. heat
C. light
D. sound

Question 8

In a third-class lever the

A. pivot is between the load and effort
B. pivot is absent
C. load is between the effort and pivot
D. effort is between the load and pivot

Question 9

At which positions S,R,Q and P on the lever in the diagram below must a force be applied to lift the load most easily?

A. P
B. Q
C. R
D. S

Question 10

Which of the following machines works on the same principle as an inclined plane?

A. Bottle opener
B. Wheelbarrow
C. See-saw
D. Screw

Question 11

Power is defined as the

A. ability to do work.
B. force to move an object.
C. rate of doing work.
D. ability to replace energy used.

Question 12

Which of the following food substances is not involved in respiration?

A. Amino acids
B. Fatty acids
C. Glucose
D. Vitamins

Question 13

Which of the following organisms is at the beginning of a food chain?

A. Fish
B. Grass
C. Locust
D. Mosquito

Question 14

The human male sex cell that takes part in reproduction is the

A. penis
B. scrotum
C. sperm
D. testis

Question 15

The removal of waste products from the cells of organisms is called

A. assimilation.
B. circulation.
C. exhalation.
D. excretion.

Question 16

The central nervous system consists of the

A. spinal cord and spine.
B. brain and the nerves.
C. brain and the spinal cord.
D. skeletal system and skull.

Question 17

Which of the following life processes is not performed by all living things?

A. Excretion
B. Photosynthesis
C. Reproduction
D. Respiration

Question 18

All veins in the body carry blood that does not contain oxygen with the exception of the veins from the

A. heart.
B. kidneys.
C. lungs.
D. liver.

Question 19

The method of purification of water containing very little impurities is

A. boiling
B. chlorination
C. distillation
D. filtration

Question 20

Boiling and chlorination are used in water purification to

A. kill germs.
B. help suspended particles to settle.
C. remove suspended particles.
D. remove hardness of the water.

Question 21

The chemical symbol C is the symbol for

A. calcium.
B. chlorine.
C. carbon.
D. sodium.

Question 22

A substance which is made up of the same kind of atoms is called

A. a compound.
B. a mixture.
C. an element.
D. an ion.

Question 23

Which of the following processes results in the formation of new substances?

A. Heating camphor
B. Cooling water to form ice
C. Adding saliva to cooked yam
D. Mixing iron dust and sand together

Question 24

When elements combine to form a compound the

A. constituents can be separated by a physical process.
B. volume of the compound is the sum of the volumes of the constituents.
C. reaction does not involve a heat change.
D. reaction can be represented by a chemical formula.

Question 25

Which of the following organisms is likely to increase the oxygen content of the water in a pond?

A. Fish
B. Tadpole
C. Mosquito larva
D. Water lily

Question 26

Which of the following parasites is a plant?

A. Bilharzia
B. Dodder
C. Lice
D. Tapeworm

Question 27

The part of the soil that is most important for the growth of plants is

A. clay.
B. humus.
C. sand.
D. silt.

Question 28

Which of the following diseases may be associated with water?

A. Chicken pox
B. Cholera
C. Small pox
D. Tetanus

Question 29

The mosquito and housefly are harmful in that they

A. suck blood.
B. bite and cause pain.
C. settle on food.
D. spread diseases.

Question 30

Which of the following diseases affects the central nervous system?

A. Cerebro Spinal Meningitis (CSM)
B. Poliomyelitis
C. Measles
D. Yellow Fever

Question 31

Day and night occur because the earth

A. moves round the sun.
B. moves from east to west.
C. moves round the moon.
D. rotates on its axis.

Question 32

Bronze is an alloy of

A. iron and carbon.
B. zinc and copper.
C. iron and zinc.
D. copper and tin.

Question 33

Which of the following substances causes acid rain when released into the atmosphere?

A. Carbon dioxide
B. Water vapour
C. Sulphur dioxide
D. Cement dust

Question 34

Which of the following gases helps in rusting?

A. Carbon dioxide
B. Hydrogen
C. Oxygen
D. Nitrogen

Question 35

The force of attraction between molecules of different substances is called

A. adhesion.
B. cohesion.
C. tension.
D. viscosity.

Question 36

A metal block has a mass of 0.1kg. Calculate its volume if the density is 1.0 kgm-3.

A. 0.01 m3
B. 0.10 m3
C. 1.00 m3
D. 10.00 m3

Question 37

The food manufactured by a plant is distributed to all parts of the plant through the

A. chlorophyll.
B. phloem.
C. stomata.
D. xylem.

Question 38

Some insects are able to walk on water because

A. they are lighter than water.
B. their skins cannot be penetrated by water.
C. the surface of the water acts like an elastic skin.
D. the surface of water is curved.

Question 39

Oxygen is made available to all cells of the human body by the

A. plasma.
B. platelets.
C. white blood cells.
D. red blood cells.

Question 40

The force which pulls all objects towards the centre of the earth is the

A. frictional force.
B. electrostatic force.
C. gravitational force.
D. rotational force.