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100 Integrated Science Questions and Answers for 2025 BECE Candidates
With the aim of students' success, we have compiled likely Integrated Science questions and answers for the 2025 BECE candidates.
These questions were selected based on some confirmed topics as well as past questions. Use the following 100 Integrated Science Questions And Answers For 2025 BECE Candidates to revise now.
1. The S.I. unit for measuring the work done by a force is
A. J. B. K. C. N. D. W.
2. The chemical formula of a compound describes the
A. number of molecules in the compound
B. type of bonding in the compound
C. ratio in which the elements are combined
D. state of the compound
3. Which of the following life processes is represented by the equation
Glucose + oxygen → carbon dioxide + water + energy
A. Digestion
B. Excretion
C. Photosynthesis
D. Respiration
4. Each layer of soil profile is known as
A horizon
B. litter
C. regolith
D. solum
5. When the p-n junction of a transistor is reverse biased
A. Current flows from the p-type to the n-type.
B. No current flows from the p-type to the n-type.
C. Conduction of current occurs.
D. Current flows from the n-type to the p-type.
6. When a solid-liquid mixture is filtered, the liquid that separates out into the container is called
A. filtrate
B. residue
C. sediment
D. solution
7. Which of the following processes involves the solid state of matter?
A. Boiling
B. Condensation
C. Evaporation
D. Melting
8. Which of the following farming systems is most effective in maintaining soil fertility?
A. Crop rotation
B. Land rotation
C. Mixed cropping
D. Mono culture
9. The disease in humans which is associated within sufficient intake of calcium is
A. goiter
B. kwashiorkor
C. rickets
D. scurvy
10. The arrow in the circuit symbol of either n-p-n or p-n-p transistor is always on the
A. base lead
B. collector lead C. emitter lead D. receiver lead
11. Which of the following insect pests of crops has piercing and sucking mouthparts?
A. Aphids
B. Grasshoppers
C. Stem borers
D. Termites
12. A reflex action involves the
A. brain and muscles
B. brain and nerves
C. spinal cord and muscles
D. spinal cord and nerves
13. The type of image formed in a plane mirror is always
A. diminished
B. enlarged
C. real
D. virtual
14. Which of the following statements about acids are correct?
I. They turn red litmus paper blue
II. They can be classified as either organic or mineral acids
III. They can be neutralized by bases
A. I and II only B. I and III only C. II and III only D. I,II and III
15. A transistor is said to operate in an active region when
A. one p-n junction is forward biased and the other is reversed biased
B. base-emitter junctions are reversed biased
C. both p-n junctions are reversed biased
D. base-collector junction is forward biased
16. Tuberculosis is spread
A. through eating of contaminated food
B. when an infected person coughs openly into the air
C. through shaking of hands of infected persons
D. through sharing of contaminated syringes
17. One function of engine oil in the engine of a tractor is to
A. warm the engine
B. enhance air intake
C. ensure proper mixing of fuel
D. lubricate the engine parts
18. Blackpod is a disease of
A. cocoa
B. coffee
C. guava
D. mango
19. The efficiency of a machine is always less than 100% because part of the energy input is used to
A. stop the machine after working B. perform useful work on the load C. overcome friction
D. lift the machine up
20. Which of the following electronic components are used to produce oscillator circuits?
I. Transistor II. Inductor III. Capacitor
A. I and II only B. I and III only C. II and III only D. I,II andIII
21. Which of the following sources of light is natural?
A. Filament bulb
B. Fluorescent tube
C. Glow worm
D. Firecracker
22. Which of the following substances are carried by the blood?
I. Hormones
II. Urine
III. Oxygen
IV. Carbon dioxide
23. The practice of starting new organization in response to identified opportunities is termed
A. agribusiness
B. business enterprise
C. entrepreneurship
D. management
24. The sub-atomic particle with zero charge in the nucleus of an atom is called
A. electron
B. ion
C. neutron
D. proton
25. Which of the following management practices greatly helps in record keeping?
A. Culling
B. Debeaking
C. Dehorning
D. Identification
26. In the pin-hole camera,when the size of the pin-hole is increased, the image formed is
A. blurred
B. erect
C. magnified
D. virtual
27. Non-reactive metals are preferred in making ornaments and jewellery because they
A. are attractive
B. do not react with atmospheric oxygen
C. do not retain their lustre
D. are corrosive
28. Producers in an ecosystem are plants that
A. attract insects
B. feed on other plants
C. manufacture their own food
D. trap insects
29. The use of resistant varieties of crop in controlling diseases is described as
A. biological control method B. chemical control method C. cultural control method
D. physical control method
30. The chemical formula for aluminium oxide is represented as AlxOy. The values of x and y are respectively
A. 3 and 2
B. 3 and 1
C. 1 and 3
D. 2 and 3
2025 BECE Science Questions: 31-50
31. In electrical circuits, the component that protects appliances against very high currents is the
A. capacitor
B. fuse
C. resistor
D. switch
32. One benefit of technology to industrialization is
A. environmental pollution
B. reduction in skillful labour
C. provision of machinery
D. increase in cost of production of goods
33. Which of the following factors contribute to early parenthood?
I. Poverty
II. Illiteracy
III. Lack of parental care
IV. Peer pressure
A. I and II only B. II and III only C. III and IV only D. I,II,III and IV
34. Which of the following examples of fertilizers improves soil texture?
A. Compost
B. NPK
C. Sulphate of ammonia
D. Urea
35. The reaction between hydrochloric acid and sodium hydroxide produces
A. sodium oxide only
B. sodium chloride only
C. sodium oxide and water
D. sodium chloride and water
36. In modern electrical wirings the colour code for the live wireis
A. blue
B. brown
C. green
D. green and yellow
37. An example of soil minor nutrient is
A. calcium
B. iron
C. nitrogen
D. phosphorus
38. The complete development of a human foetus in the womb normally takes
A.7 months B. 8 months C. 9 months D. 10 months
39. A material that allows a small amount of light energy to pass through it but cannot be seen through is referred to as
A. opaque
B. reflective C. translucent D. transparent
40. The leads of the transistor responsible for activation is the
A. amplifier
B. base
C. collector
D. emitter.
41. Which of the following types of teeth is used by mammals to tear food material?
A. Canines
B. Incisors
C. Molars
D. Premolars
42. The eclipse formed when the moon comes between the sun and the earth is known as
A. annular eclipse
B. lunar eclipse
C. solar eclipse
D. total eclipse
43. The element with the chemical symbol S is
A. silicon
B. silver
C. sodium
D. sulphur
44. The term leaching in soils refers to
A. accumulation of organic matter
B. decomposition of plant material.
C. fixation of nitrogen
D. removal of soil nutrients by water.
45. Which of the following statements about a plant cell is correct? It
A. does not have a nucleus
B. contains large vacuoles
C. is surrounded by the cell membrane only
D. does not have a definite shape
46. An example of a derived quantity is
A. length
B. mass
C. temperature
D. volume
47. Solid non-metals normally break into pieces when hammered because they are
A. brittle
B. ductile
C. lustrous
D. malleable
48. Young rabbits are called
A. bunnies
B. cubs
C. fingerlings
D. kids
49. Producers in an ecosystem are plants that
A. attract insects
B. feed on other plants
C. feed on dead materials
D. manufacture their own food.
50. The form of energy produced from the nucleus of an atom is termed
A. chemical energy
B. mechanical energy
C. nuclear energy
D. thermal energy
2025 BECE Science Questions: 51-80
51. Which of the following elements is a semi-metal?
A. Carbon
B. Nitrogen
C. Silicon
D. Sodium
52. A system of farming that leads to continuous destruction of virgin forest is
A. mixed farming
B. mixed cropping
C. pastoral farming
D. shifting farming
53. The by-products of respiration are
A. carbon dioxide and heat
B. carbon dioxide and water
C. oxygen and heat
D. oxygen and water.
54. Which of the following statements about a force are correct? It
I is measured in newtons.
II is measured in newton-meters.
I can start a motion.
IV can change the direction of a moving body.
A. I and II only
B. I and III only
C. I, III and IV only
D. I, II, III and IV
55. Which of the following substances is a solid-gas mixture?
A. Lather
B. Bronze
C. Steel
D. Smoke
56. Weeds on a school farm could be controlled by
A. handpicking
B. mowing
C. ploughing
D. tilling
57. An example of a non-living tissue used in osmosis experiment is
A. cellophane
B. filter paper
C. potato
D. polythene
58. Kerosene is poured on the surface of a pond in order to
A. make it unsafe for human consumption
B. make it safe for animal consumption
C. increase the surface tension
D. break the surface tension
59. Which of the following processes is used to separate insoluble solids from liquids?
A. Crystallization
B. Evaporation
C. Filtration
D. Sublimation
60. The process of removing unproductive poultry birds from a flock is referred to as
A. candling
B. culling
C. dehorning
D. drenching
61. Which of the following pairs of diseases can be spread easily when food is exposed to houseflies?
A. Dysentery and malaria
B. Malaria and tuberculosis
C. Dysentery and cholera
D. Cholera and tuberculosis
62. The pressure in fluids
A. acts differently in all directions
B. acts upwards at any point
C. decreases with depth
D. increases with depth
63. Which of the following processes involve a change in the state of matter from liquid to solid?
A. Beans
B. Bread
C. Cabbage
D. Egg
64. Which of the following food items contains the highest amount of dietary fibre?
A. Beans
B. Bread
C. Cabbage
D. Egg
65. An example of a disease vector is
A. earthworm
B. liver fluke
C. tapeworm
D. tick
66. Which of the following devices is made of semiconductor?
A. Capacitor
B. Inductor
C. Resistor
D. Transistor
67. Which of the following statements about the properties of water are correct? It
I. is colourless and tasteless
II. is neutral to litmus paper
III. turns red litmus paper blue
IV. is a universal solvent
A. I and II only
B. I and III only
C. I, II and IV only
D. I, III and IV only
68. The study of the soil profile of an area helps the farmer to
A. control weed growth
B. determine the soil temperature
C. determine the types of crop to grow.
D. know the pesticides to use.
69. When a green leaf is placed in a test tube containing ethanol and heated over a water bath the leaf
A. becomes soft
B. changes colour to brown
C. changes colour to blue-black
D. is decolourized.
70. Which of the following sources of energy is / are renewable?
I. Solar
II. Crude oil
III. Wind
A. I only
B. I and II only
C. I and III only
D. I, II and III
71. Which of the following substances is a compound?
A. Hydrogen
B. Nitrogen
C. Oxygen
D. Water
72. A disease-causing organism that is most difficult to control in crop production is
A. bacterium
B. fungus
C. nematode
D. virus
73. Which of the following organisms is/ are multicellular?
I. Amoeba
II. Paramecium
III. Onion
A. I only
B. III only
C. I and III only
D. II and III only
74. In electronic circuits, LEDs are used to indicate the absence or presence of
A. emitter and collector
B. electric current
C. p-n junction
D. voltage source.
75. Steel is an alloy of iron and
A. aluminium
B. carbon
C. silicon
D. gold
76. Soil aeration could be improved through
A. mulching
B. irrigation
C. soil drainage
D. fertilizer application
77. Which of the following pairs of structures are part of the respiratory system of humans?
A. Fallopian tube and alveoli
B. Pharynx and oesophagus
C. Trachea and alveoli
D. Trachea and duodenum
78. Which of the following effects is not a result of illegal connection of electricity? It can
A. lead to fire outbreak
B. lead to frequent power cut-off
C. increase the flow of current in the supply chain.
D. cause damage to electrical appliance
79. Which of the following statements about the scientific method is / are correct? It provides
I. logical procedure for arriving at knowledge.
II. knowledge that can be verified
III. knowledge that can never be changed
A. I only
B. I and II only
C. I and III only
D. II and III only
80. An entrepreneur’s decision as to what to produce is a/ an
A. co-ordinating function
B. organizing function
C. planning function
D. supervising function.
2025 BECE Science Questions: 81-100
81. An example of a third class lever is
A. wheelbarrow
B. sugar tongs
C. pair of scissors
D. crowbar
82. The release of a mature egg from an ovary into the fallopian tube in humans is called
A. copulation
B. ejaculation
C. menstruation
D. ovulation
83. The blood vessel that carries oxygenated blood from the lungs to the heart is known as
A. pulmonary artery
B. pulmonary vein
C. vena cava
D. aorta
84. An example of a plant micro-nutrient is
A. calcium
B. copper
C. magnesium
D. potassium
85. What is the colour of the neutral wire in a three-pin plug?
A. Blue
B. Brown
C. Green
D. Yellow
86. In the pin-hole camera, the image formed is always
A. erect and bright
B. erect and blurred
C. inverted and real
D. inverted and virtual
87. The part of the flower that develops into a fruit is the
A. ovary
B. ovule
C. stamen
D. style
88. The number of elements in the compound Ca(OH)2 is
A. 2
B. 3
C. 4
D. 5
89. The reason why alum is added to water during treatment is to
A. kill germs
B. give taste to water
C. make water colourless
D. make suspended particles settle
90. Which of the following animal parasites could be controlled by hand picking?
A. Liver fluke
B. Tapeworm
C. Tick
D. Roundworm
91. A stick which is partially immersed in water appeared to be bent due to
A. absorption
B. reflection
C. refraction
D. transmission
92. One difference between metals and non-metals is that metals
A. have low density
B. are not malleable
C. have luster
D. have low melting points.
93. The cultivation of different crops on different plots of a farmland in a definite cycle is called
A. land rotation
B. shifting cultivation
C. crop rotation
D. mixed cropping
94. Iodine deficiency in humans could result in a disorder known as
A. diabetes
B. goiter
C. kwashiorkor
D. scurvy
95. A substance is termed combustible if it
A. easily catches fire
B. dissolves common salt
C. sublimes at room temperature
D. boils at 100°C.
96. Micro-organisms that cause diseases are collectively called
A. bacteria
B. infections
C. pathogens
D. viruses
97. Which type of energy is lost when sweat evaporates from the human body?
A. Sound energy
B. Mechanical energy
C. Chemical energy
D. Heat energy
98. Which of the following gases is involved in the rusting of iron?
A. Hydrogen
B. Oxygen
C. Nitrogen
D. Carbon dioxide
99. The feeling of soil between fingers is used to determine the
A. texture of the soil
B. drainage of the soil
C. capillarity of the soil
D. water holding capacity of the soil.
100. Sodium hydroxide is an example of a base because it
A. has sour taste
B. has a pH less than 7
C. turns wet blue litmus paper red
D. turns wet red litmus paper blue
ANSWERS
1. C. N.
2. C. ratio in which the elements are combined
3. D. Respiration
4. A horizon
5. B. No current flows from the p-type to the n-type.
6. A. filtrate
7. D. Melting
8. A. Crop rotation
9. C. rickets
10. D. receiver lead
11. A. Aphids
12. D. spinal cord and nerves
13. D. virtual
14. C. II and III only
15. A. One p-n junction is forward biased, and the other is reverse biased.
16. B. when an infected person coughs openly into the air
17. D. Lubricate the engine parts.
18. A. cocoa
19. C. overcome friction
20. D. I, II, and III
21. C. Glowworm
22. D. I, III, and IV only
23. C. entrepreneurship
24. C. neutron
25. D. Identification
26. A. blurred
27. B. do not react with atmospheric oxygen
28. C. Manufacture their own food
29. A biological control method
30. D. 2 and 3
31. B. fuse
32. C. provision of machinery
33. D.I, II, III, and IV
34. A. Compost
35. D. sodium chloride and water
36. B. Brown
37. B. iron
38. C. 9 months
39. C. translucent
40. B. base
41. A. canines
42. C. solar eclipse
43. D. sulfur
44. D. removal of soil nutrients by water
45. B. contains large vacuoles
46. D. volume
47. A. brittle
48. A. bunnies
49. D. manufacture their own food
50. C. nuclear energy
51. C. silicon
52. D. shifting farming
53. B. carbon dioxide and water
54. C. I, III, and IV only
55. D. smoke
56. A. handpicking
57. A. cellophane
58. D. break the surface tension
59. C. filtration
60. B. culling
61. C. Dysentery and cholera
62. D. increases with depth
63. B. freezing
64. A. Beans
65. D. tick
66. D. Transistor
67. C. I, II, and IV only
68. C. determine the types of crops to grow
69. D. decolorized
70. C. I and III only
71. D. water
72. A. Bacterium
73. B. III only
74. B. electric current
75. B. carbon
76. D. fertilizer application
77. C. trachea and alveoli
78. C. increase the flow of current in the supply chain
79. B. I and II only
80. C. planning function
81. B. sugar tongs
82. D. ovulation
83. B. pulmonary vein
84. B. copper
85. A. Blue
86. C. inverted and real
87. A. ovary
88. B. 3
89. D. make suspended particles settle
90. C. Tick
91. C. refraction
92. C. have luster
93. C. crop rotation
94. B. goiter
95. A. easily catches fire
96. C. pathogens
97. D. Heat energy
98. B. Oxygen
99. A. texture of the soil
100. D. Turns wet red litmus paper blue
We have no doubt that the 2025 BECE science questions shared here will help you review. Solve all 100 questions now.
