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1.
The three states of matter are
Water, liquid and gas
Earth, liquid and gas
Solid, liquid and air
Gas, earth and water
2.
Soil erosion ....
washes away the water content of soil
enables crops to grow better
washes away the top soil
leaves the soil free of pests
3.
What is the average body temperature of a healthy person?
25°C
36°C
37°C
38°C
4.
5.
Leguminous crops such as beans may often be cultivated to
Add humus to the soil
Add nitrogen to the soil
Add protein to the soil
Make the soil loamy
6.
Which of the following is an excretory organ?
Anus
Eye
Heart
Skin
7.
Which of the following is the function of the hair in the nose? It
keeps the nose warm
makes breathing easier
keeps the nose moist
prevents carbon dioxide from entering the body
8.
Which of the following is equal to one metre?
1 cm
10 cm
100 cm
500 cm
9.
Which of the following statements about feeding relationships is not true?
Energy is transferred from one organism to another
A green plant is the basis of any food chain
Bacteria feed on dead organisms for energy
A carnivore feeds on green plants for energy
10.
In a simple machine, the force that is applied to enable work to be done is known as
Lever
Load
Pivot
Effort
11.
Which of the following changes does not occur in a girl at the age of puberty?
The breasts develop
The hips widen
Menstruation
The teeth becomes whiter
12.
The fixed point of a lever at which turning takes place is the
pivot
effort
load
handle
13.
Which of the following mixtures can be separated by filtration?
Salt in water
Sugar in water
Sand in water
Oil in water
14.
The skin is made up of
One layer
Two layers
Three layers
Four layers
15.
The force which acts between planets and keeps them in their orbits is called
electrical force
magnetic force
gravitational force
frictional force
16.
Which of the following types of soil allows the fastest rate of drainage?
Clayey soil
Loamy soil
Black soil
Sandy soil
17.
Which of the following is the percentage composition of oxygen in the air?
0.03
1
21
78
18.
Disposal of sewage into a river which supplies water for domestic use may lead to an outbreak of
malaria
cholera
guinea worm
river blindness
19.
The process by which a naphthalene ball (camphor) placed in a box gets smaller in size is termed
Melting
Diffusion
Evaporation
Sublimation
20.
Which of the following food substances is not oxidized during respiration?
Fatty acids
Amino acids
Glucose
Cellulose
21.
Kerosene and petrol are obtained from crude oil by
distillation
condensation
filtration
evaporation
22.
Which of the following encourages the spread of venereal diseases?
Poor family planning
Drug Abuse
Mental ill health
Parental wealth
23.
A torch light bulb lights up when connected to a dry cell. What type of energy is obtained from the cell?
Chemical energy
Light energy
Potential energy
Electrical energy
24.
Which of the following is not a soil nutrient?
Hydrogen
Nitrogen
Potassium
Calcium
25.
Which of the following organisms causes bilharziasis?
Tapeworm
Blood fluke
Blood worm
Round worm
26.
A piece of stone sinks in water because
its density is the same as that of water
it is able to displace its own weight of water
its density is less than that of water
its density is greater than that of water
27.
Which of the following is characteristic of reflex action?
It happens slowly
It happens consciously
It takes a long path
It involves thinking
28.
All the following are sense organs except the
eye
brain
ear
skin
29.
A mixture of raw starch and water is best separated by
boiling
distillation
decantation
winnowing
30.
Which of the following is a horizontal underground stem?
Cocoyam
Onion
Carrot
Yam
31.
32.
In an experiment in which a variegated leaf is used, which of the following is proved to be necessary for photosynthesis?
Carbon dioxide
Light
Chlorophyll
Water
33.
Friction is defined as a force which
accompanies motion
acts against motion
causes motion
makes motion easy
34.
Which of the following is not a function of the lens in the human eye? It
allows light rays to pass through it
refracts the light rays passing through it
helps to focus the image onto the retina
becomes thinner when focusing a distant object
35.
36.
Smoke is an example of a mixture of
Gases
Liquids in gases
Solids in liquids
solids in gases
37.
Which of the following is the best method of preventing skin disease?
The use of perfume on the skin
The use of bleaching cream on the skin
Avoiding contact with diseased person
keeping the skin clean by washing it regularly
38.
Which of the following has a different physical state from the others under ordinary conditions?
Zinc
Lead
Iron
Mercury
39.
Heat from the sun reaches the earth by
conduction
convection
radiation
reflection
40.
During an eclipse of the moon, the
Sun and the moon are on one side of the earth
Earth and the sun are on one side of the moon
Sun comes between earth and moon in a straight line
Earth comes between sun and moon in a straight line
(a)
Define the following terms and give one example of each:
(i)
Element
(ii)
Mixture
(iii)
Compound
(b)
Explain the following terms:
(i)
Work
(ii)
Energy
(c)
State the units in which each of the following are measured:
(i)
Power
(ii)
Energy
(iii)
Electric current
(iv)
Temperature
(d)
A body of mass 100 kg is placed at a point 2 m above the ground. What is the potential energy of the body with reference to the ground?
[Take g = 10 ms-2]
(e)
State three characteristics of each of the following:
(i)
An insect pollinated flower
(ii)
A wind pollinated flower
(a)
(i)
Explain the term balanced diet.
(ii)
Name any two classes of food which should be present in a balanced diet.
(iii)
Give one function of each class of food named in (a) (ii) above.
(b)
An object is placed in front of a pinhole camera as shown in the diagram below:
Draw in your answer book a ray diagram (not to scale) to show how the image is formed on the screen of the camera.
(c)
State the two laws of reflection of light
(d)
(i)
Describe how ions are formed from atoms.
(ii)
State two differences between a proton and an electron.
(a)
(i)
Explain the term electromagnetism.
(ii)
Given a nail, insulated wire, key (or switch) and a battery, show by means of a circuit diagram how the nail can be magnetized.
(b)
List three symptoms of malaria.
(c)
State three ways of keeping the environment clean.
(d)
Write down the names of the new substances formed when the following compounds react:
(i)
Ammonia and dilute hydrochloric acid;
(ii)
Sodium hydroxide and dilute hydrochloric acid;
(iii)
Calcium carbonate and dilute hydrochloric acid.
(a)
(i)
What is meant by a satellite?
(ii)
State one difference between a natural and an artificial satellite.
(iii)
State two uses of artificial satellite.
(b)
Give two differences between the mass and weight of a body.
(c)
Write the chemical formulae for the following substances.
(i)
Calcium oxide;
(ii)
Water;
(iii)
Copper sulphate.
(d)
What will be the effect on the colour of blue litmus paper when it is dropped in each of the following solutions?
(i)
Sodium hydroxide solution;
(ii)
Dilute hydrochloric acid;
(iii)
Lime juice;
(iv)
Water.
(e)
(i)
Define breathing
(ii)
Arrange the following parts of the human being respiratory system in order in which air from the atmosphere passes through them during breathing:
Trachea, nostrils, lungs and bronchus.
(iii)
Describe briefly what happens to a piece of bread when it reaches the duodenum of a human being.
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