2023 BECE candidates should prove that they are ready to write the 2023 external examinations by solving the following well-analysed questions. The Integrated Science paper will be written on Tuesday, 8th August, 2023. It will be the third paper after English Language and Religious and Moral Education..

Below are some questions that must be solved by each 2023 BECE candidate. Solving these questions is a way of proving to yourself that you are ready for the exams.

1. An aluminium cube with side measuring 2m has amass of 24 kg. Calculate the density of the aluminium.

A. 48 kgm-3

B. 24 kgm-3

C. 12 kgm-3

D. 3 kgm-3

2. The force that opposes the motion of an object on an other object is called

A. electrical force

B. frictional force

C. gravitational force

D.magnetic force

3. Water is prevented from passing through the tiny holes in a numbrellaby

A. diffusion

B. frictional force

C. capillarity

D. surface tension

4. Which of the following methods of preserving food makes use of heat energy from the sun?

A. Drying

B. Frying

C. Salting

D. Refrigeration

5. Which of the following properties is true about all matter? Matter has

A. volume and fixed shape

B. volume and mass

C. mass and indefinite volume

D. density and fixed shape

6. The type of energy obtained when an electric bulb is connected to a battery is

A.chemical energy

B. Electrical energy

C.light energy

D.magnetic energy

7. A magnet can attract all these substances except

A. Drawing pins

B. Glass

C. Steel

D. Iron nails

8. The process by which heat travels along a metal is called

A. convection

B. conduction

C. expansion

D. radiation

9. The instrument used to measure temperature is the

A. ammeter

B. barometer

C. manometer

D. thermometer

10. A stick placed in water appears to be bent because light traveling from the water to the air is

A. dispersed

B. displaced

C. refracted

D. reflected

11. A plane mirror could be described as opaque because it

A. reflects all the light incident on it

B. absorbs all the light incident on it

C. allows all the light incident on it to pass through it

D. allows some of the light incident on it to pass through it and absorbs the rest

12. A suitable machine for loading drums of palm oil onto a truck is

A. a screw

B. a crowbar

C.a wheel barrow

D. an inclined plane

13. The human forearm is an example of

A. a first class lever

B. a second class lever

C. a third class lever

D. both first and third class levers

14. The chemical substances which help in the digestion of food are known as

A. enzymes

B. hormones

C. plasma

D. vitamins

15. Digestion of proteins starts from the

A. duodenum

B. ileum

C. mouth

D. stomach

16. A reflex action involves the

A. brain and nerves

B. bones and nerves

C. brain and muscles

D. spinal cord and nerves

17. Which of the following structures is not part of the central nervous system?

A. Brain

B. Spinal cord

C. Nerves

D. Veins

18. When the testa of a soaked bean is removed, the seed is seen to be made up of

A. cotyledons

B. embryos

C. micropyles

D. radicles

19. One function of the root system of plants is to

A. excrete carbon dioxide

B. store waste materials

C. hold the plant firmly in the ground

D. prepare food for the plant

20. Which of the following diseases is caused by a virus?

A. Cholera

B. Cerebro-Spinal Meningitis (CSM) C. Malaria

D. Tuberculosis (TB)

21. The different types of teeth that an animal has gives an indication of the nature of its

A. digestion

B. environment

C. feeding

D. reproduction

22. Exchange of gases takes place in the respiratory system through the

A. bronchi

B. lungs

C. nostrils

D. trachea

23. Water that requires more soap in order to form lather is described as

A. clean

B. hard

C. pure

D. soft

24. One best way of making water safe for drinking is by

A. adding washing soda

B. filtering

C. adding common salt

D. boiling

25. The process where by a hot saturated solution is cooled to obtain the soluteis called

A. condensation

B. crystallization

C. distillation

D. evaporation

More BECE candidates to fail if 2023 marking scheme is changed – Prof

26. If a mixture of water and powdered charcoal is allowed to stand for along time, the charcoal

A. rises to the top

B. settles at the bottom

C. dissolves completely in the water

D. continues to remain suspended in the water

27. The chemical symbol of potassium is

A. Na

B. K

C. Pb

D. S

28. The atom of an element is represented as . How many electrons are in the atom?

A. 52 B. 35 C. 18 D. 17

29. Which of the following agricultural practices prevents loss of water from the soil?

A. Addition of manure

B. Mulching

C. Addition of humus

D. Composting

30. Soil conservation is important because it prevents loss of

A. carbon dioxide B. oxygen C. minerals D. humus

31. Foot rot disease in animals is caused by

A. bacteria

B. fungi

C. protozoa

D. viruses

32. A patient with symptoms of diarrhoea and vomiting may be suffering from

A. cholera

B. dysentery

C. influenza

D. tuberculosis

33. Which of the following human activities pollutes the environment?

I. Release of cement dust into the atmosphere

II. Dumping of refuse into water bodies

III. Burning of rubbish

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

34. Which of the following features of a parent would not be in herited by the children?

A. Colour of eye

B. Shape of nose

C. Height

D. Scar

35. Which of the following bodies is at the centre of the solar system?

A. Earth

B. Mars

C. Moon

D. Sun

36. The chemicals used in the preparation of ammonia in the laboratory are

A. ammonium chloride and calcium hydroxide

B. ammonium nitrate and sodium chloride

C. ammonium sulphate and calcium chloride

D. ammonium sulphate and sodium chloride

37. Steel is an alloy of

A. iron and carbon

B. zinc and copper

C. iron and zinc

D. brass and zinc

38. The property of a metal that makes it possible for it to be beaten into different shapes is called

A. conductivity

B. ductility

C. malleability

D. resistivity

39. Movement of the particles of a gas from a region of higher concentration to a region of lower concentration is known as

A. capillarity

B. diffusion

C. osmosis

D. viscosity

40. Oxygen in the blood finally reaches the parts of the body through the

A. arteries

B. alveoli

C. capillaries

D. veins

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SOLUTION

1. D. 3 kgm-3

2. B. frictional force

3. D. surface tension

4. A. Drying

5. B. volume and mass.

6. C. light energy

7. B. glass

8. B. conduction

9. D. thermometer

10. C. refracted

11. A. reflects all the light incident on it

12. D. an inclined plane

13. C. a third class lever

14. A. enzymes

15. D. stomach

16. D. spinal cord and nerves

17. D. Veins

18. A. cotyledons

19. C. hold the plant firmly in the ground

20. B. Cerebro-Spinal Meningitis (CSM)

21. C. feeding

22. B. lungs

23. B. hard

24. D. boiling

25. B.crystallization

26.B.settles at the bottom

27. B. K

28. D. 17

29. B. Mulching

30. C. minerals

31. B. fungi

32. A. cholera

33. D. I,II and III

34. D. Scar

35. D. Sun

36. A .ammonium chloride and calcium hydroxide

37. A.iron and carbon

38. C.malleability

39.B.diffusion

40. C.capillaries