Question 1

The S.I unit of temperature is

A. Candela
B. Degree Celsius
C. Joule
D. Kelvin

Question 2

Air is an example of

A. gas in gas mixture.
B. liquid in liquid mixture.
C. solid in liquid mixture.
D. solid in solid mixture.

Question 3

Which of the following activities are involved in the rearing of tilapia?

A. I and II only
B. I and III only
C. II and III only
D. I, II and III

Question 4

The part of the flower that contains nectar is called

A. anther.
B. petal.
C. ovary.
D. sepal.

Question 5

Which of the following methods protects pure iron from rusting by coating with zinc?

A. Alloying
B. Galvanizing
C. Greasing
D. Painting

Question 6

Leaching of nutrients from the soil leads to soil

A. acidity.
B. alkalinity.
C. erosion.
D. porosity.

Question 7

The hereditary material that is passed on from parents to offspring is known as

A. gene.
B. sperm.
C. red blood cell.
D. white blood cell.

Question 8

The solar system is made up of the

A. earth, moon and stars.
B. sun, comets and meteors.
C. sun, earth and moon.
D. sun, planets and other heavenly bodies.

Question 9

The type of management system which allows farm animals to roam about freely is known as

A. extensive system.
B. intensive system.
C. semi-extensive system.
D. semi-intensive system.

Question 10

External respiration in living organisms is also known as

A. aerobic respiration.
B. anaerobic respiration.
C. gaseous respiration.
D. tissue respiration.

Question 11

A rigid bar which is capable of turning about a fixed point is a/an

A. inclined plane.
B. lever.
C. screw.
D. wheel and axle.

Question 12

A positively charged ion is called

A. anion.
B. cation.
C. neutron.
D. proton.

Question 13

One way of ensuring that organisms are not endangered is to

A. allow them to be hunted.
B. allow their predators to outnumber them.
C. protect their habitats.
D. pollute their habitats.

Question 14

A good thermometer liquid must

A. be colourless.
B. boil at 100°C and freeze at 0°C.
C. cling to the walls of the glass.
D. expand evenly and regularly.

Question 15

Which of the following metals will produce a gas when placed in lime juice?

A. Copper
B. Lead
C. Magnesium
D. Silver

Question 16

The physical property of a soil which is determined by the feel method is soil

A. structure.
B. temperature.
C. texture.
D. water.

Question 17

The reason why gaps are left in the joints of railway lines is to allow for

A. cooling.
B. contraction.
C. expansion.
D. maintenance.

Question 18

Which of the following effects are caused by rusting?

A. I and II only
B. I and III only
C. II and III only
D. I, II and III

Question 19

Leguminous crops may often be cultivated to add

A. carbon to the soil.
B. nitrogen to the soil.
C. protein to the soil.
D. potassium to the soil.

Question 20

A place where an organism can live and interbreed successfully is called

A. community.
B. ecosystem.
C. environment.
D. habitat.

Question 21

Which of the following methods of treating water makes it soft?

A. Addition of alum
B. Addition of sodium carbonate
C. Chlorination
D. Filtration

Question 22

Dehusking and shelling are both activities carried out in the processing of

A. cowpea.
B. groundnut.
C. maize.
D. sorghum.

Question 23

Typhoid fever is transmitted through

A. contact with contaminated skin wounds.
B. eating contaminated food.
C. eating uncooked food.
D. drinking treated water.

Question 24

One advantage of friction is that it

A. enables cutting tools to be sharpened.
B. increases the efficiency of machines.
C. produces a lot of heat in machines.
D. wears off the sole of shoes.

Question 25

Sickle is a farm tool used for

A. harvesting rice.
B. trimming hedges.
C. transplanting seedlings.
D. watering crops.

Question 26

One characteristic of the image formed in a pin-hole camera is that the image is

A. diminished.
B. magnified.
C. upright.
D. virtual.

Question 27

Transplanting of seedlings is usually done in the evening because

A. darkness promotes rapid growth
B. pest attack is minimal.
C. transpiration is minimal.
D. seedlings require less nutrients.

Question 28

Which of the following statements about molecules is/are correct? Molecules

A. I only
B. II only
C. I and III only
D. I, II and III

Question 29

Fruits which are dispersed by wind are likely to be

A. dry.
B. hairy.
C. juicy.
D. sticky.

Question 30

Which of the following materials allows electric current to pass through easily?

A. Aluminium
B. Carbon
C. Glass
D. Water

Question 31

Water contains two elements, hydrogen and oxygen, in the ratio of

A. 1:2
B. 1:3
C. 2:1
D. 3:1

Question 32

In the digestive system of ruminants, vitamins are synthesized in the

A. abomasum.
B. omasum.
C. reticulum.
D. rumen.

Question 33

The best way of protecting oneself from high blood pressure is to

A. consume alcoholic drinks.
B. eat high carbohydrate diet.
C. engage in smoking.
D. exercise regularly.

Question 34

The property of metals which makes them to be easily drawn into thin wires is known as

A. conductivity.
B. ductility.
C. malleability.
D. resistivity.

Question 35

An atom of an element is represented as \(^{13}_{27}X\). How many neutrons are in the nucleus of the atom?

A. 13
B. 14
C. 27
D. 40

Question 36

Viable seeds are ones that

A. are able to germinate under suitable conditions.
B. are eaten by animals after planting.
C. contain a lot of oil.
D. have hard seed coat.

Question 37

Which of the following processes can occur at all temperatures?

A. Boiling
B. Evaporation
C. Melting
D. Sublimation

Question 38

Which of the following human activities maintains the carbon cycle?

A. Bush burning
B. Felling of trees
C. Release of fumes from factories
D. Replanting of trees felled as timber

Question 39

The farming system which involves the growing of one type of crop on the same piece of land every season is known as

A. mixed cropping.
B. mixed farming.
C. monocropping.
D. monoculture.

Question 40

The presence of chlorophyll in green plants is a necessary condition for photosynthesis because it

A. absorbs oxygen.
B. absorbs solar energy.
C. produces carbon dioxide.
D. produces water vapour.