WASSCE past question

Integrated Science 2026

Integrated Science

Objective Test — instructions

Answer all the questions.

Each question is followed by four options lettered A to D. Find the correct option for each question and shade in pencil, on your answer sheet, the answer space which bears the same letter as the option you have chosen.

Give only one answer to each question. An example is given below.

Think carefully before you shade the answer spaces; erase completely any answers you wish to change.

Do all rough work in this question paper.

Now answer the following questions.

1. [1]

WASSCE 2026 · Paper 1

Mercury has a relative density of 13.6. Determine the density of mercury.\n[Density of water = \(1.0 \times 10^3\ \mathrm{kg\,m^{-3}}\)]

2. [1]

WASSCE 2026 · Paper 1

An example of a plant with runners is

3. [1]

WASSCE 2026 · Paper 1

Which of the following instrument(s) is/are classified as percussion instruments? I. Cymbals II. Violin III. Gong gong

4. [1]

WASSCE 2026 · Paper 1

Thrombocytes are produced in the

5. [1]

WASSCE 2026 · Paper 1

The systematic name of the compound \(SO_3\) is

6. [1]

WASSCE 2026 · Paper 1

Which of the following statements about pests and parasites are correct? I. Pests are always found in crops and animals. II. All parasites are not pests. III. Parasites attack only animals.

7. [1]

WASSCE 2026 · Paper 1

A ball of mass 250 g is placed at a height of 12 m above the ground. Determine its potential energy at this height. [g = 10 m s⁻²]

8. [1]

WASSCE 2026 · Paper 1

Which of the following practices is not used for identifying farm animals?

9. [1]

WASSCE 2026 · Paper 1

The layer of the atmosphere in which air moves in a horizontal direction is

10. [1]

WASSCE 2026 · Paper 1

The most important role of legumes in soil conservation is

11. [1]

WASSCE 2026 · Paper 1

Which of the following structures is found in the middle ear of humans?

12. [1]

WASSCE 2026 · Paper 1

One effect of acid rain on humans is that it

13. [1]

WASSCE 2026 · Paper 1

Which of the following statements about small scale industry is correct? It

14. [1]

WASSCE 2026 · Paper 1

When the p-n junction diode is forward-biased, then I. the positive terminal of a cell is connected to the p-type of the diode. II. the junction becomes narrower. III. electric current flows across the junction.

15. [1]

WASSCE 2026 · Paper 1

The following activities lead to global warming except

16. [1]

WASSCE 2026 · Paper 1

The product of mass and velocity of a body is known as its

17. [1]

WASSCE 2026 · Paper 1

The term supplying as used in crop production means

18. [1]

WASSCE 2026 · Paper 1

The following alloys contain copper except

19. [1]

WASSCE 2026 · Paper 1

Which of the following organisms converts ammonium compounds into nitrites?

20. [1]

WASSCE 2026 · Paper 1

The pressure at the point in water is 560 kPa. If the density of water is 1000 kg m⁻³, determine the depth of the point below the surface. [g = 10 m s⁻²]

21. [1]

WASSCE 2026 · Paper 1

Which of the following organs removes bile pigments from the blood in humans?

22. [1]

WASSCE 2026 · Paper 1

Which of the following items is/are recommended to extinguish small fires? I. Fire blanket II. Sand bucket III. Carbon(IV) oxide

23. [1]

WASSCE 2026 · Paper 1

A hydrocarbon \(C_3H_4\) is an example of

24. [1]

WASSCE 2026 · Paper 1

The mode of heat transfer which does not need a material medium is I. convection. II. conduction. III. radiation.

25. [1]

WASSCE 2026 · Paper 1

The expressed characteristics of an organism is referred to as

26. [1]

WASSCE 2026 · Paper 1

One of the gases responsible for global warming is

27. [1]

WASSCE 2026 · Paper 1

The branch of the posterior vena cava into the kidney is called

28. [1]

WASSCE 2026 · Paper 1

One advantage of soft water is its

29. [1]

WASSCE 2026 · Paper 1

Which of the following parasites could be controlled by drenching?

30. [1]

WASSCE 2026 · Paper 1

The earth wire I. is coloured red. II. carries charges to earth. III. is buried in the earth in the home.

31. [1]

WASSCE 2026 · Paper 1

Isotopes of carbon have proton number

32. [1]

WASSCE 2026 · Paper 1

The energy transformation that takes place when batteries are operating is

33. [1]

WASSCE 2026 · Paper 1

The chemical formula of iron(II) trioxosulphate (IV) is

34. [1]

WASSCE 2026 · Paper 1

In the human skeleton the humerus is joined posteriorly to the

35. [1]

WASSCE 2026 · Paper 1

Which of the following pairs of elements form an ionic compound?

36. [1]

WASSCE 2026 · Paper 1

Which of the following activities are benefits of radioisotopes in agriculture? I. Food preservation II. Plant breeding III. Pest control IV. Sterilization

37. [1]

WASSCE 2026 · Paper 1

Which force is mainly reduced when a lubricant is applied to the moving parts of an engine?

38. [1]

WASSCE 2026 · Paper 1

Coronary thrombosis is a blood circulatory disorder that occurs when

39. [1]

WASSCE 2026 · Paper 1

The term coitus interruptus, used in family planning means

40. [1]

WASSCE 2026 · Paper 1

Damping-off is a common disease of

41. [1]

WASSCE 2026 · Paper 1

The best instrument to be used to measure the internal diameter of a pipe is the

42. [1]

WASSCE 2026 · Paper 1

Generation of electrical power is possible using

43. [1]

WASSCE 2026 · Paper 1

Which of the following feedstuffs are main sources of energy for poultry? I. Barley II. Copra cake III. Wheat bran

44. [1]

WASSCE 2026 · Paper 1

Which of the following functions is not associated with soil water?

45. [1]

WASSCE 2026 · Paper 1

One difference between arteries and veins is that arteries generally

46. [1]

WASSCE 2026 · Paper 1

A blue shirt viewed under red light will appear

47. [1]

WASSCE 2026 · Paper 1

Canned food containers are prevented from rusting by coating with

48. [1]

WASSCE 2026 · Paper 1

A mass of 8 g NaOH was dissolved in 250 cm³ of its solution. Determine the molar concentration of the solution. [NaOH = 40]

49. [1]

WASSCE 2026 · Paper 1

Ammonia gas produced in the laboratory cannot be collected over water because the gas is

50. [1]

WASSCE 2026 · Paper 1

Which of the following structures is not part of the embryo sac in a flowering plant?

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