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1.
Which of the following substances can exist in all the three states of matter at 0°C?
Petrol
Palm oil
Milk
Alcohol
2.
Pluto is the darkest planet because it
is larger than the sun
is the largest planet
is beyond the reach of the sun’s rays
is smaller than the sun
3.
In reproduction, the embryo can be referred to as
an ovary
a fertile egg
a fertilized egg
a placenta
4.
5.
Which of the following is not a communicable disease?
smallpox
chicken pox
influenza
pneumonia
6.
When bread is chewed for a long time, it tastes sweeter because it
is made from sugar and flour
is digested into simple sugar
mixes with saliva which is alkaline
is broken into smaller pieces
7.
Which of the following gases is not an air pollutant?
cigarette fumes
carbon dioxide
sulphur dioxide
exhaust fumes
8.
Dissolved mineral salts from the soil enter the plant by the process of
phototropism
transpiration
diffusion
osmosis
9.
Which of the following organs is the center of the Central Nervous System?
Kidney
Liver
Heart
Brain
10.
Soil fertility can be conserved by all the following methods except
mulching
afforestation
deforestation
crop rotation
11.
Which of the following insects is an agent of pollination?
Mosquito
Housefly
Bee
Ant
12.
During the dry season most trees shed their leaves to
protect the tree
avoid being pulled down by strong winds
conserve water and nutrients
discourage animals from eating the leaves
13.
The chemical formula for sodium chloride
Na2Cl
NaCl
Sn2Cl
NaCl2
14.
Which of the following is the cleanest source of drinking water?
Lake
Stagnant water
River
Deep well
15.
The edible part of the mango fruit is called
endocarp
drupe
fibre
mesocarp
16.
Which of the following is not a characteristic of all living organisms
Respiration
Reproduction
Photosynthesis
Feeding
17.
Which of the following conditions in a simple machine will make working difficult? When
The load distance is equal to the effort distance
The effort distance is twice the load distance
The effort distance is three times the load distance
Small effort moves through a longer distance
18.
A dam for generating power is constructed across a river. What type of energy is possessed by the water behind the dam?
Kinetic energy
Potential energy
Electrical energy
Heat energy
19.
Which of the following is a function of prop roots? They
Store starch in the swollen branch roots
Take in air for respiration
Hold the plant more firmly in the soil
Develop into storage roots
20.
Which of the following living organisms is not a reptile?
Lizard
Tortoise
Frog
Snake
21.
The following are steps involved in how nutrients in decaying organic matter finally get to man.
I. The mineral in them go into the soil
II. Man goes to eat the plant food
III. They dissolve in soil water
IV. They are used up by plants during photosynthesis
Which of the following arrangements represents the correct order in which the processes occur?
I, II, III and IV
I, III, IV and II
IV, II, III and I
II, III, I and IV
22.
Which of the following is the energy possessed by an object placed on a table?
Kinetic energy
Electrical energy
Potential energy
Sound energy
23.
24.
The most sensitive region of the eye to light rays is the
retina
pupil
cornea
iris
25.
Digestion is a process by which food is
transported in soluble form within the body of animals
broken down into tiny pieces in the mouth
moved through the alimentary canal
broken down to produce energy, water and carbon dioxide
26.
Which of the following processes is not a physical change
Dissolution
Melting
Boiling
Evaporation
27.
Which of the following is used to measure the potential difference across a resistor in an electrical circuit?
A galvanometer
A rheostat
A meter bridge
A voltmeter
28.
There are thick forests in some parts of the world because the climate there is
Warm and dry
Cool and dry
Hot and dry
Cool and wet
29.
Which of the following practices encourages soil erosion?
Planting cover crops
Mulching
Contour ridging
Crop rotation
30.
A car battery produces electrical energy from
Chemical energy
Sound energy
Kinetic energy
Heat energy
31.
Which of the following substances is not found in the excretory products of man?
Ammonium salt
Common salt
Glucose
Water
32.
Which of the following processes can be used to obtain local gin from palm wine?
Evaporation
Condensation
Distillation
Filtration
33.
34.
Which of the following organisms causes malaria?
Tsetsefly
Fungi
Virus
Plasmodium
35.
The male and female sex cells of a plant are respectively in the
Sperm and egg
Pollen grain and ovary
Sperm and ovary
Ovary and ovule
36.
Which of the following preventive measures is not used in the control of tuberculosis?
Isolating the patient
Spitting carelessly in the environment
Keeping separate cutlery, plates, cups for the patient
Vaccinating young babies with BCG vaccine
37.
. During an eclipse of the sun, the region that has total darkness is known as
umbra
orbit
penumbra
shadow
38.
Animals that live in grasslands include
lions and giraffes
monkeys and tigers
antelopes and hares
woodpeckers and baboons
39.
Which of the following are products of respiration?
Glucose and oxygen
Waste food, energy and carbon dioxide
Energy, carbon dioxide and water
Energy, oxygen and water
40.
Which of the following living things hide during the sunny days in order to conserve water in its body?
Rat
Lizard
Butterfly
Toad
(a)
Distinguish between the following terms:
(i)
Physical change and chemical change
(ii)
Solution and suspension
(b)
Classify the following as either a physical or chemical change
(i)
Common salt in water
(ii)
Burning of charcoal
(iii)
Melting of ice
(iv)
Hydrochloric acid in sodium hydroxide solution
(c)
(i)
What is a parasite?
(ii)
Give two examples of parasites and their hosts.
(d)
Give the chemical symbols of the following elements
(i)
Oxygen
(ii)
Chlorine
(iii)
Aluminium
(iv)
Calcium
(e)
(i)
Explain the term self-pollination
(ii)
Name four agents of pollination
(iii)
State the function of the brightly coloured petals in insect pollination
(a)
(i)
Explain the term digestion
(ii)
State the end products of digestion of each of the following food substances
α)
carbohydrates;
β)
proteins;
γ)
fats and oils
(iii)
Name the enzyme present in saliva and state its function
(b)
(i)
By what process does the heat of the sun reach the earth?
(ii)
An aluminium bowl placed on a table is filled with hot water. Name the processes by which heat is lost by the bowl.
(iii)
Give one reason why wood is used as a handle for some cooking utensils.
(c)
List separately the vegetative parts and reproductive parts of a flowering plant
(d)
(i)
What are alloys?
(ii)
Give two examples of alloys and state their constituents
(a)
(i)
Explain the term friction
(ii)
Give two methods of reducing friction
(iii)
A rigid bar is used to lift a stone
α)
Draw a diagram showing the effort, pivot and load positions
β)
If the length of the bar is 100 cm and the pivot is placed 80 cm from the effort, calculate the load distance
(b)
(i)
Explain the term excretion
(ii)
State the organs in human beings which excrete the following waste products:
α)
Sweat
β)
Carbon dioxide
γ)
Urine
(c)
(i)
What is a food chain?
(ii)
Draw a food chain using the following organisms:
Hawk, cassava leaf, lizard and grasshopper
(d)
State three conditions necessary for the germination of seed.
(e)
(i)
Name two diseases which can be transmitted sexually
(ii)
Give two features which can be passed on from parents to children
(a)
(i)
List the various planets of the solar system in the order they occur starting with the planet nearest the sun
(ii)
State one difference between the eclipse of the sun and the eclipse of the moon.
(b)
(i)
Define the term force
(ii)
State three types of force
(iii)
A box is pulled by a force of 20 N through a distance of 8 m along a smooth floor.
Calculate the work done by the force.
(c)
Draw simple electrical circuits showing the following arrangements:
(i)
A switch and a light bulb in series with two dry cells in series
(ii)
A switch and a light bulb in series with two dry cells in parallel
(d)
Name two diseases that can be controlled by immunization
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