BECE mock exam

Science — Best Brain Nov 2026 Science

87 questions to work through. Answer them here, or take the whole thing timed with an account.

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1. [1]

BECE mock · Science

In an electronic circuit, increasing the series resistance will cause the LED to
2. [1]

BECE mock · Science

Which of the following statements explains the formation of shadows behind opaque objects?
3. [1]

BECE mock · Science

During grid electrical transmission over long distances, electrical power is stepped up in order to
4. [1]

BECE mock · Science

An atom has 11 protons and 11 electrons. If it loses one electron, the particle formed will have
5. [1]

BECE mock · Science

Which of the following statements is/are true? I. Prokaryotic cells lack a membrane-bound nucleus. II. Eukaryotic cells contain membrane-bound organelles such as mitochondria. III. Bacteria are typical examples of eukaryotic organisms.
6. [1]

BECE mock · Science

Which organism occupies the trophic position of the secondary consumer?
7. [1]

BECE mock · Science

In a simple electronic circuit, the main function of a switch is to
8. [1]

BECE mock · Science

Water vapour is released from the leaves of plants into the atmosphere by
9. [1]

BECE mock · Science

Which of the following is not an organic source of plant nutrients?
10. [1]

BECE mock · Science

Cellular respiration takes place in the
11. [1]

BECE mock · Science

A child has swollen legs, a large abdomen and poor muscle development. The condition is most likely
12. [1]

BECE mock · Science

Salivary amylase aids in the digestion of
13. [1]

BECE mock · Science

Which of the following contains only renewable sources of energy?
14. [1]

BECE mock · Science

Which of these domestic animals are entirely ruminants?
15. [1]

BECE mock · Science

A bar magnet is suspended freely from a stirrup and allowed to oscillate horizontally. In what direction does it come to rest?
16. [1]

BECE mock · Science

Which of the following pathogens causes the viral respiratory illness COVID-19?
17. [1]

BECE mock · Science

Food is chewed in the mouth to I. break it into smaller pieces. II. start digesting all the nutrients. III. soften and lubricate the food. IV. digest starch into glucose.
18. [1]

BECE mock · Science

Transition metals have
19. [1]

BECE mock · Science

When a moving bus stops abruptly, standing passengers surge forward. This observation illustrates
20. [1]

BECE mock · Science

Light bends when it moves from air into water because
21. [1]

BECE mock · Science

Non-metals in the periodic table are characteristically
22. [1]

BECE mock · Science

A crate of mass 15 kg is lifted vertically to a storehouse shelf at a height of 4 m. The potential energy gained by the crate is
23. [1]

BECE mock · Science

An electronic component designed to allow electric current to flow specifically in only one direction is a
24. [1]

BECE mock · Science

A severe deficiency of vitamin C leads to
25. [1]

BECE mock · Science

Which of the following is classified as a heterogeneous mixture?
26. [1]

BECE mock · Science

Medical waste is best disposed of by
27. [1]

BECE mock · Science

The region of a mammalian tooth having blood capillaries and nerve fibres is
28. [1]

BECE mock · Science

In the rock cycle, compaction and cementation are processes associated with
29. [1]

BECE mock · Science

An example of sustainable solid waste management practice that returns nutrients directly to agricultural soils is
30. [1]

BECE mock · Science

The type of feed suitable for ruminants such as cows and sheep is
31. [1]

BECE mock · Science

A 1500W pump is used to run an irrigation system on a farm 5 hours each day. How much energy is consumed daily?
32. [1]

BECE mock · Science

Cutting down many trees may affect the carbon cycle by
33. [1]

BECE mock · Science

Which of the following is a characteristic feature of Saturn?
34. [1]

BECE mock · Science

A likely advantage of integrating crops and animals in a farming system is that
35. [1]

BECE mock · Science

The most important agent of chemical weathering is
36. [1]

BECE mock · Science

The mineral required in higher levels in a balanced poultry layer ration to support strong eggshell formation is
37. [1]

BECE mock · Science

The force that holds systems and galaxies together is
38. [1]

BECE mock · Science

At what stage of the life cycle is a housefly referred to as “maggot”?
39. [1]

BECE mock · Science

The most commonly used tool for loosening soil during farm activities is
40. [1]

BECE mock · Science

Which of the following is an application of magnetic force?
41. [2]

BECE mock · Science

State both Newton’s Second Law of Motion and the Law of Magnetism.
42. [2]

BECE mock · Science

Give two factors that affect how fast the paper clips accelerate towards the nail.
43. [2]

BECE mock · Science

What is the role of the battery in the circuit above?
44. [2]

BECE mock · Science

Explain how the distance between the nail and the paper clips affect the force acting on the paper clips.
45. [2]

BECE mock · Science

What happens if the paper clips are replaced with coins twice the mass if the coils around the nail and the voltage remain the same?
46. [1]

BECE mock · Science

Identify the food substance that is being tested for.
Diagram for question 46
47. [6]

BECE mock · Science

State the purpose of each of the steps labelled 1, 2 and 3.
Diagram for question 47
48. [1]

BECE mock · Science

What conclusion can you draw from the observation at step 4?
Diagram for question 48
49. [2]

BECE mock · Science

State two safety precautions to take in performing the experiment.
Diagram for question 49
50. [2]

BECE mock · Science

Identify the tool shown above.
Diagram for question 50
51. [2]

BECE mock · Science

State the function being performed by the tool.
Diagram for question 51
52. [3]

BECE mock · Science

Give three reasons why the function being performed above is important.
Diagram for question 52
53. [3]

BECE mock · Science

State three ways of maintaining the tool above.
Diagram for question 53
54. [6]

BECE mock · Science

Name and explain the processes labelled I, II, III, IV, V, VII and VIII.
Diagram for question 54
55. [2]

BECE mock · Science

State two benefits of water to human life.
56. [2]

BECE mock · Science

Explain two ways in which atmospheric carbon dioxide causes climate change.
57. [3]

BECE mock · Science

Explain why the housefly is considered as a vector.
58. [3]

BECE mock · Science

Describe three methods of controlling houseflies in the community.
59. [2]

BECE mock · Science

State two differences between the inner and outer planets.
60. [2]

BECE mock · Science

Give two reasons why humans cannot survive on any other planet apart from Earth.
61. [3]

BECE mock · Science

Give three reasons why clayey soil may not be suitable for growing crops.
62. [5]

BECE mock · Science

Name and explain the processes X and Y and give the products of each.
Diagram for question 62
63. [2]

BECE mock · Science

Give two reasons that make Process X suitable for that stage of separation.
Diagram for question 63
64. [3]

BECE mock · Science

A force of 45N acts on an object of mass 9kg. Calculate the acceleration.
65. [3]

BECE mock · Science

Give three functions of cell walls in plants.
66. [3]

BECE mock · Science

State three similarities between a plant and an animal cell.
67. [2]

BECE mock · Science

List the first two halogens in the periodic table and their atomic numbers.
68. [3]

BECE mock · Science

Name the first three noble gases and state the use of each.
69. [3]

BECE mock · Science

Mention three signs of climate change.
70. [3]

BECE mock · Science

Give three examples of metamorphic rock and the parent rock for each.
71. [3]

BECE mock · Science

Mention three methods of fertilizer application.
72. [2]

BECE mock · Science

State two factors to consider when applying fertilizers.
73. [3]

BECE mock · Science

Name and explain the phenomena shown as A and B above.
Diagram for question 73
74. [4]

BECE mock · Science

Give two applications each of A and B in everyday life.
Diagram for question 74
75. [1]

BECE mock · Science

Name the causative organism of cholera.
76. [3]

BECE mock · Science

Give three symptoms of cholera.
77. [2]

BECE mock · Science

Describe how the interatomic bonds in Sodium chloride are formed.
78. [2]

BECE mock · Science

State two differences between ionic bonds and covalent bonds.
79. [1]

BECE mock · Science

The weight of the load.
80. [1]

BECE mock · Science

The work input and work output of the inclined plane.
81. [3]

BECE mock · Science

The efficiency of the inclined plane.
82. [3]

BECE mock · Science

Explain three sustainable waste management practices.
83. [3]

BECE mock · Science

State three impacts of waste substances on the environment.
84. [2]

BECE mock · Science

Why did the rice develop a slightly sweet taste after chewing?
85. [2]

BECE mock · Science

State two ways in which the mouth helps in the digestion of food.
86. [2]

BECE mock · Science

State four uses of solids in our daily life.
87. [2]

BECE mock · Science

Give four properties of the liquid state of matter.

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