Basic Science Exam Questions for JSS2 Third Term

You’re welcome to our school exams series where we provide you with termly examination questions in different subjects. In today’s post, we will focus on Basic Science exam questions. We will cover Basic Science exam questions for JSS2 Third term with answers. This means that we’ll be providing you with answers to the questions at the end. Also, you will get a few success tips on how to pass Basic Science examinations with flying colors. Remember to use the comments sections if you have questions, and don’t forget to join our Free Online Tutorial Classes on Facebook. (Like and Follow Page)

Introduction to Basic Science as a School Subject

Basic Science is a foundational subject taught in junior secondary schools. It introduces students to the world of science by combining key concepts from Biology, Chemistry, Physics, and Earth Science. The subject is designed to help students understand how things work in nature and in their everyday lives.

Through practical activities and simple experiments, Basic Science encourages curiosity, critical thinking, and problem-solving skills. It lays the groundwork for further studies in science and technology at higher levels of education.

By learning Basic Science, students gain knowledge that helps them appreciate the environment, use scientific tools, and make informed decisions about health, safety, and sustainable living.

Basic Science Exam Questions for JSS2 Third Term

Basic Science Exam Questions for JSS2 Third Term are divided into two sections:

• Section A
• Section B

The first section, namely, Section A is the objective test, and students are expected to attempt all questions in the section. Section B is the theory part, and students are expected to follow specific instruction and answer the required number of questions.

Note that what you have below are JSS2 Basic Science Third Term Exam Past Questions made available to assist students in their revision for 3rd term examinations and also teachers in structuring standard examinations.

SECTION A: Objectives

Instruction: Answer all questions in this section by choosing from the options lettered A—D. Each question carries equal marks.

1. Air is regarded as matter irrespective of its weightlessness. True/False

2. Water boils at ______ degrees
A. 100°C           B. 245°C
C. 0°C               D. 100°C

3. Evaporation occurs ________ at the surface of the liquid.
A. angrily          B. consciously
C. rapidly          D. slowly

4. An ideal machine is said to be
A. 200%
B. -30%
C. 100%
D. none of the above

5. We can avoid rusting by picking
A. True
B. False
C. All of the above

6. Changes that occur rapidly at the entire body of a liquid is called __________
A. boiling
B. rusting
C. transpiration
D. evaporation

7. ______ is used daily for the purpose of holding parts of object together.
A. screws
B. wheel and Axel
C. jack
D. wedge

8. ______ is defined as an inclined plane wrapped around a cylinder or shaft
A. pulley
B. lever
C. sugar tongs
D. screw

9. The gap between each consecutive thread is called _________
A. pitch           B. porch
C. pit              D. pull

10. Wind affects evaporation. (Yes, No)

11. _______ is used to load or offload a heavy object.
A. screw        B. inclined plane
C. pulley        D. gears

Use the diagram below to answer questions 12 and 13:

Load                B                           C

12. Label the parts named B.

13. What is the part labelled C?

14. Blood diseases include ___________ and ___________.

15. _______ is the longest bone in the body
A. axial           B. Fibula
C. Femur        D. Tibia

16. End product of protein digestion is ________
A. fatty acid
B. amino acid
C. cyanide
D. all of the above

17. The opening through which air enters the body is called _________.

18. ________ has a potential kind of energy.

19. What is the work done in joules of a car of mass 10kg moving with velocity of 4m/s?
A. 40 joules       B. 60 joules
C. 80 joules       D. 90Nm

(20 – 23) The four forms of energy are:

20. ________________

21. ________________

22. ________________

23. ________________

24. Those persuasive conditions amongst adolescent are;
A. reading habit
B. kidnapping
C. social functions
D. all of the above

25. The causes of change of states of matter are __________ and 26. _______
A. pressure and sunlight
B. chemical reaction and catalyst
C. air and humidity
D. none of the above

Use the Diagram below to answer questions 27 and 28:

Deadwood (Producer) → Termite (Primary Consumer) → Chick (Secondary Consumer) → Hawk (Tertiary Consumer)

27. What relationship is the above arrangement?

28. The relationship can be found in _______
A. terrestrial habitat
B. aquatic
C. diurnal
D. ecosystem

29. The S.I Unit for measuring power is ________
A. watts
B. Newton
C. Metre per second
D. Joules

30. Petrochemicals are good sources of ________
A. foreign exchange
B. litigation
C. fraud
D. selection

31. The force of attraction that affect the movement of particles or matter is called ________
A. force of convection
B. cohesive force
C. force of corruption
D. none of the above

32. A boy pushed a table of mass 35kg through a distance of 5ms-¹. How much work did he do?
A. 175 Joules
B. 75Joules
C. 72 Joules
D. 150NM

33. The following are examples of potential energy except
A. flying kite
B. a nursing mother
C. a falling man
D. all of the above

34. A hydrated ion (III) oxide is otherwise called _________
A. ferric acid
B. rusting
C. ferrous oxide
D. all of the above

35. The causative organism for Ebola haemorrhagic infection is called _________

36. Non-living things in our environment are called _________

37. The following are factors that can affect growth but_________
A. religion
B. nutrition
C. heredity
D. all of the above

38. Community is a group of organisms of ________
A. same species
B. different species
C. populated species
D. none of the above

39. The following are hormones that control metabolism in human except
A. Auxin
B. Thyroxin
C. progesterone
D. testosterone

40. The changes in which living things come to maturity is called _________
A. menopause
B. growth
C. development
D. advancement

41. A linear feeding relationships is called _________
A. tropical
B. food dens
C. food chain
D. food web

42. The following includes temporary changes except _________
A. bet-wetting
B. menopause
C. menstruation
D. all of the above

43. A fertilized egg is called _________
A. zygote         B. penis
C. foetus         D. gametes

44. The fusion of male and female reproductive organs is called _________
A. fission
B. zygote
C. fertilization
D. reproduction

45. Breathing through the mouth is better. True/False

46. Chemical substances contained in the red blood cells are called _________
A. plasma           B. Haemoglobin
C. Antibody       D. Hemophilia

47. The urinary organs that store up urine is termed _________
A. kidney         B. urinary bladder
C. lungs           D. urethra

48. _________ holds bones together in the skeleton system.
A. ligament         B. tendon
C. fracture           D. cartilage

49. The following are Biotic factors of an environment except _________
A. soil           B. grasses
C. insect       D. clay

50. Diurnal animals are animals that ________
A. are active at night
B. see in daylight
C. fly only
D. creeping

51. From the observation in our practical, what happens to Tube C?
A. rusted
B. not rusted
C. heavily rusted
D. None of the above

52. What did we add into test tube D?
A. air and water
B. calcium chloride and oil
C. water and salt
D. none of the above

53. Pitching means _________
A. selection of high grade material
B. preventing rust
C. causing rust
D. all of the above

54. Work is said to be done when _________
A. a force moves an object through a distance
B. an object remains stationary despite a force being applied
C. energy is present in a system
D. a force is exerted, but no displacement occurs

55. What is the formula for finding force?
A. Mass = Force/g​
B. Force = Mass/work​
C. Force = Time/Distance
D. Force = mass x g

56. The S.I unit of mass is _________
A. Newton
B. Joules
C. Kilogram
D. Newton square

57. The component of crude oil is _________
A. dissecting oil
B. lubricating oil
C. kerosene oil
D. none of the above

58. Petrochemicals are _________ in nature
A. organic
B. synthetic
C. processed
D. all of the above

59. Natural sources of hydro carbon are _________
A. soil
B. processed gas
C. distilled gas
D. all of the above

60. Gaseous oxygen liquefies at _________
A. 183°C         B. -225°C
C. 147°C         D. 100°C

SECTION B: Essay

INSTRUCTION – Answer all five (5) questions in this section.

1. Write the five alimentary canals you have studied?
2. A body of mass 10kg climbs up 5 steps each of height 0.5m in 10 seconds. Calculate his power.
3. Write 2 consequences of diseases on family and 2 on the society.
4. Write 3 examples of abiotic factors.
5. State 3 tabular form the difference between evaporation and boiling.
6. Name the two (2) major kinds of habitat for living things.
7. State 2 physical and 2 chemical properties of hydrogen.
8. State 4 examples of radiation.
9. State 2 uses of conduction.

Read Also: Civic Education Exam Questions for JSS1 Third Term

Answers to Basic Science Exam Questions for JSS2 Third Term

Answers to Section A (Objective Test)

The following table gives the correct answers to the objective section of Basic Science exam questions for JSS2 Third term. If you are using a mobile device, hold the table and scroll to the right or left for a complete view.

So here you have the answers to the objective section of Basic Science Exam Questions for JSS2 Third term. Use the comments section to let me know if you have any questions you would want me to clarify or discuss further.

Answers to Section B (Theory)

How to Pass Basic Science Exam Questions for JSS2 Third Term

Passing your Basic Science exam questions for JSS2 Third term requires a combination of preparation, understanding, and strategy. Here are actionable tips to help you excel:

✅ 1. Know the Topics in the Syllabus
Go through your third term scheme of work. Common topics include:
– The Human Circulatory System
– Solar Energy
– Air Pollution
– Renewable and Non-renewable Resources
– Forces
– Friction
– Electrical Energy
– Machines
– Living and Non-living Things
Knowing what to expect helps you study wisely.

✅ 2. Study Your Notes and Textbooks Daily
Don’t wait till exam week. Break your notes into smaller chunks and read daily. Focus on:
– Definitions (e.g., friction, pollution)
– Diagrams (e.g., heart, pulley)
– Laws and formulas (e.g., work = force × distance)

✅ 3. Practice Past Questions Regularly
Get past questions for JSS2 third term Basic Science and solve them under exam conditions. This helps you:
– Know the question pattern
– Master how to answer well
– Improve speed and confidence

✅ 4. Memorize Key Definitions and Laws
Exams often ask you to define or explain. Memorize definitions like:
– Renewable Energy
– Pulley
– Conduction
– Friction
Also, understand simple laws like Newton’s laws of motion and Ohm’s Law (if introduced).

✅ 5. Understand, Don’t Just Cram
Don’t just cram notes—try to understand what they mean. Ask yourself:
– Why is friction necessary?
– How does the circulatory system work?
Understanding helps you answer in your own words.

✅ 6. Join a Study Group or Online Tutorial
You can join a WhatsApp or Facebook group like Free Online Math & Science Tutorials for free lessons, past questions, and revision tests.

✅ 7. Pray and Stay Calm Before the Exam
Revision is good, but prayer and confidence give you peace of mind. Avoid last-minute rush or fear.

It’s a wrap!

If you need more clarification on JSS2 Third Term Questions on Basic Science, you can use the comments box below. We’ll be there to answer you asap.

Best wishes.