2023 BECE Integrated Science paper will be written on Tuesday, 8th August, 2023. Here are some questions and answers for candidates.

1. Matter has

A. volume and fixed shape

B. volume and mass

C. mass and indefinite volume

D. density and fixed shape

2. 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

3. A magnet can attract all these substances except

A. Drawing pins

B. Glass

C. Steel

D. Iron nails

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

A. convection

B. conduction

C. expansion

D. radiation

5. The instrument used to measure temperature is the

A. ammeter

B. barometer

C. manometer

D. thermometer

6. 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

7. 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

8. 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

9. 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

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

A. enzymes

B. hormones

C. plasma

D. vitamins

11. Digestion of proteins starts from the

A. duodenum

B. ileum

C. mouth

D. stomach

12. A reflex action involves the

A. brain and nerves

B. bones and nerves

C. brain and muscles

D. spinal cord and nerves

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

A. Brain

B. Spinal cord

C. Nerves

D. Veins

14. 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

15. 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

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

A. Cholera

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

D. Tuberculosis (TB)

17. 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

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

A. bronchi

B. lungs

C. nostrils

D. trachea

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

A. clean

B. hard

C. pure

D. soft

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

A. adding washing soda

B. filtering

C. adding common salt

D. boiling

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

A. condensation

B. crystallization

C. distillation

D. evaporation

22. 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

23. The chemical symbol of potassium is

A. Na

B. K

C. Pb

D. S

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

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

25. 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

26. Soil conservation is important because it prevents loss of

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

27. Foot rot disease in animals is caused by

A. bacteria

B. fungi

C. protozoa

D. viruses

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

A. cholera

B. dysentery

C. influenza

D. tuberculosis

29. 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

30. 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

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

A. Earth

B. Mars

C. Moon

D. Sun

32. 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

33. Steel is an alloy of

A. iron and carbon

B. zinc and copper

C. iron and zinc

D. brass and zinc

34. 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

35. 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

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

A. arteries

B. alveoli

C. capillaries

D. veins

37. An aluminium cube with side measuring2 m has amass of24 kg. Calculate the density of the aluminium.

A. 48 kgm-3

B. 24 kgm-3

C. 12 kgm-3

D. 3 kgm-3

38. 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

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

A. diffusion

B. frictional force

C. capillarity

D. surface tension

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

A. Drying

B. Frying

C. Salting

D. Refrigeration

SOLUTION

1. B. volume and mass

2. C. light energy

3. B. glass

4. B. conduction

5. D. thermometer

6. C. refracted

7. A. reflects all the light incident on it

8. D. an inclined plane

9. C. a third class lever

10. A. enzymes

11. D. stomach

12. D. spinal cord and nerves

13. D. Veins

14. A. cotyledons

15. C. hold the plant firmly in the ground

16. B. Cerebro-Spinal Meningitis (CSM)

17. C. feeding

18. B. lungs

19. B. hard

20. D. boiling

21.B.crystallization

22.B.settles at the bottom

23. B. K

24. D. 17

25. B. Mulching

26. C. minerals

27. B. fungi

28. A. cholera

29. D. I,II and III

30. D. Scar

31. D. Sun

32. A .ammonium chloride and calcium hydroxide

33.A.iron and carbon

34.C.malleability

35.B.diffusion

36.C.capillaries

37. D. 3 kgm-3

38. B. frictional force

39. D. surface tension

40. A. Drying

THEORY

1. What is the difference between a solid, liquid, and gas? Answer: A solid has a fixed shape and volume, a liquid has a fixed volume but no fixed shape, and a gas has neither a fixed shape nor a fixed volume.

2. What is the difference between an acid and a base? Answer: Acids are substances that release hydrogen ions (H+) in water, while bases are substances that release hydroxide ions (OH-) in water.

3. What is the difference between a renewable and non-renewable resource? Answer: Renewable resources can be replenished naturally over time, such as wind or solar power, while non-renewable resources cannot be replenished, such as fossil fuels.

4. What is the function of white blood cells in the body? Answer: White blood cells are part of the immune system and help to fight infections and diseases by recognizing and destroying harmful pathogens.

5. What is the difference between a physical and a chemical change? Answer: A physical change is a change in the physical properties of a substance, such as its shape or state of matter, while a chemical change is a change in the chemical composition of a substance, such as the formation of a new substance.

6. What is the difference between a prokaryotic and eukaryotic cell? Answer: Prokaryotic cells are smaller and simpler in structure, lacking a true nucleus or membrane-bound organelles, while eukaryotic cells are larger and more complex, containing a nucleus and various organelles.