Basic Science Exam Questions for JSS1 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 JSS1 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 subject taught in junior secondary schools to help students understand the world around them. It introduces them to simple and important science concepts in nature, matter, energy, the environment, and how things work.

The subject combines parts of Physics, Chemistry, Biology, and Earth Science. This gives students a strong foundation before they move on to study each of these sciences in senior secondary school.

In Basic Science, students learn by observing, experimenting, and asking questions. They learn about:

• Living and non-living things
• Changes in matter
• Force, motion, and energy
• Our solar system
• Environmental safety and health

By studying Basic Science, students develop curiosity, thinking skills, and the habit of solving problems using evidence. This prepares them for future careers in medicine, engineering, agriculture, and technology.

Basic Science Exam Questions for JSS1 Third Term

Basic Science Exam Questions for JSS1 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 JSS1 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. Organisms that carry disease germs that adversely affect the health of animals and plants are called
A. Non-pathogenic
B. Disease transferers
C. Disease vectors
D. Disease insects

2. During water treatment, filtration is done to ………
A. remove suspended particles
B. Retain particles
C. Kill bacteria
D. None of the above

3. An STI that starts with a single sore at the point of entry of bacteria is termed…….
A. Syphilis       B. Chlamydia
C. Aids            D. Chancroid

4. Which of these is not a source of energy?
A. Coal          B. Smoke
C. water        D. food

5. Which of the following is a potential energy
A. Bird flying in the air
B. stone falling from a height
C. Stone placed on a table
D. A moving train

6. The following can be used to purify water except
A. Chlorine
B. Filtration
C. storing water in bucket
D. boiling

7. The primary source of energy is
A. chemical      B. wood
C. Sun               D. petrol

8. The type of vaccine given to pregnant women is
A. tetanus toxoid
B. DPT
C. OPU
D. BCG

9. Which of these is not an importance of immunization
A. it can be used to prevent diseases
B. helps to reduce infant mortality
C. reduces immunity
D. induces pain

10. HIV can be transmitted through all these except
A. use of screened blood
B. use of unscreened blood
C. use of unsterilized injection needles
D. having sex with an infected person

11. Which of the following is not a side effect of drugs
A. untimely death
B. Relief from pain
C. mental illness
D. physical illness

12. Immunization can be used to control
A. Inherited diseases
B. Diseases caused by micro-organism
C. Diseases caused by drug Abuse
D. nutrient deficiency disease

13. The causative organism of typhoid is
A. Treponema pallidum
B. Salmonella typhi
C. Plasmodium sp.
D. Vibro cholerae

14. The best way of preventing sexually transmitted diseases is through
A. sharing of sharp objects
B. having sexual intercourse
C. Abstinence
D. use of unscreened blood

15. Children in Nigeria are immunized against the following diseases except
A. polio
B. chicken pox
C. Tuberculosis
D. HIV / Aids

16. A sensation or feeling experienced by an individual when there is no external object touching his body and exerting a force or pull is termed ………….
A. Gravitation
B. Irritability
C. weightlessness
D. force

17. Potential and Kinetic energy make up …….. energy
A. sound energy
B. Light energy
C. mechanical energy
D. chemical energy

18. The following include problems of weightlessness but ………….
A. a motion sickness
B. bone loss
C. decrease in blood volume
D. increase in muscle strength

19. The habit of taking drugs which are not recommended by a qualified medical personnel is called
A. Diagnosis
B. Medication
C. Drug abuse
D. Drug use

20. When a person is unable to do without drug, it is termed
A. Drug addiction
B. Drug therapy
C. Drug use
D. Drug misuse

21. Electric bell converts electrical energy to
A. Heat energy
B. Light energy
C. Sound energy
D. mechanical energy

22. The following are water-borne diseases except
A. Dysentery      B. Typhoid
C. Cholera          D. Syphilis

23. Another name for white blood cell is
A. leucocytes         B. thrombocytes
C. Erythrocytes      D. plasma

24. The instrument that measures the amount of air pressure is called
A. anemometer      B. barometer
C. hygrometer        D. thermometer

25. To make dirty water free from water borne diseases, it is necessary to
A. Boil and filter the water before drinking
B. Allow the water to sediment
C. filter the water
D. add aluminium salt

26. The instrument used to observe very small organisms that are not visible to naked eye is called
A. Telescope          B. periscope
C. Microscope       D. Stethoscope

27. Which of the following is responsible for the development of strong and healthy teeth
A. calcium        B. Hydrogen
C. oxygen         D. Iron

28. Shortage of protein in diet may result to a disease called
A. Pneumonia      B. kwashiorkor
C. beriberi            D. Malaria

29. Which of these is a spore-bearing plants
A. Moss          B. bean
C. Maize         D. Palm

30. The chloroplast in a plant cell contains green pigment known as
A. Melanin           B. Chlorophyll
C. Mesophyll        D. Xanthophyll

31. Which of the following is not a food item
A. Alcohol        B. milk
C. rice               D. paw-paw

32. All life activities of a cell are controlled by
A. Protoplasm    B. Cytoplasm
C. Nucleus          D. Mitochondria

33. Autotrophism is a mode of nutrition found in
A. Animals
B. Fungi
C. Green plants
D. Insects

34. What is the position of the Sun in the solar system?
A. back       B. centre
C. top         D. side

35. Multicellular organisms are those with
A. One cell only
B. Two cells
C. Many cells
D. none of the above

36. All these are present in animal cells except
A. centrioles        B. cytoplasm
C. Nucleus           D. chloroplast

37. Animals that feed on plants only are called
A. carnivores         B. Omnivores
C. herbivores         D. Scavengers

38. The first scientist to discover cell was
A. Isaac newton
B. Robert Whittaker
C. Robert Hooke
D. Felix Dujardin

39. A group of cells that work together to perform a given function is termed
A. Organelle       B. system
C. Organ             D. Tissue

40. The characteristics responsible for continuing of species is
A. reproduction    B. Respiration
C. Movement        D. Nutrition

41. All these are resources from animals except
A. wood       B. milk
C. egg          D. meat

42. Botany is the study of
A. Animals       B. fungi
C. plants          D. Micro-organisms

43. Which of these is not dicotyledon
A. Beans       B. mango
C. maize       D. Tomatoes

44. Which of these is a scientific attitude
A. law               B. theory
C. curiosity       D. result

45. Which of these is not a flowering plant?
A. Orange
B. Mango
C. Moss
D. All of the above

46. Reptiles breathe with
A. heart        B. gills
C. limbs        D. lungs

47. All these are types of responses except
A. Nastism      B. Tropism
C. Taxism        D. Autotrophism

48. An eclipse of the sun which covers the middle of the sun can be called ………… eclipse
A. total             B. partial
C. triangular     D. annular

49. Which of these is a purpose of irritability.
A. to find shelter
B. to find food
C. to release energy needed for life processes
D. to know what is happening around the living organism

50. The following are the effects of inadequate diet except
A. poor teeth formation
B. protection of the body from infection
C. poor growth
D. low resistance to diseases

51. Which of these is not involved in the life cycle of cockroach
A. Egg             B. Adult
C. Nymph       D. Pupa

52. A Russian space traveller is called …………
A. astronaut             B. astronomer
C. meteorologist      D. cosmologist

53. How many satellites does Saturn have?
A. 2           B. 6
C. 18         D. 22

54. Which of the following satellites is used to determine people’s location?
A. Remote sensing satellite
B. navigational satellite
C. communication satellite
D. reconnaissance satellite

55. Yuri A. Gagarin first went into space in the year …… .
A. 1990         B. 1968
C. 1961         D. 1957

56. A vacuum beyond the earth is said to best describe ……
A. outer space
B. emit
C. planet
D. asteroid

57. The first American man to travel to outer space was …..
A. Yuri A. Gagarin
B. Alan Shepherd
C. Michael Collins
D. Nelson Mandela

58. ………… was the first woman to travel in space.
A. Valentina Tereshkova
B. Neil Armstrong
C. Mary Slessor
D. Buzz Aldrin

59. Which of the following is contained in the outer space
A. sound
B. gravity
C. light
D. life support system

60. A line on a weather map that joins places of equal temperature is called ……….
A. Isobar            B. Isohel
C. isotherm        D. isoneph

SECTION B: Essay

INSTRUCTION – Answer all questions in this section.

1.
a. Mention the inner planets.
b. list all the components of the solar system.
c. How long does it take the following planets to revolve around the sun once: (i) Venus (ii) Earth (iii) Jupiter (iv) Mercury?

2.
a. Define contact force and give two examples of non-contact force.
b. Mention two uses of friction.
c. Define balanced and unbalanced force.

3.
a. Mention the three (3) states of matter.
b. Give one use of hydrogen and oxygen each.
c. Draw a simple diagram showing how water exists in the three states of matter.

4.
a. State 4 characteristics of the outer space.
b. Briefly explain why a piece of paper falls slowly despite the force of gravity on it.
c. What is the second biggest planet?
d. Define an eclipse.
e. Draw a simple diagram of solar eclipse.

Read Also: Basic Technology Exam Questions for JSS1 Third Term

Answers to Basic Science Exam Questions for JSS1 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 JSS1 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 JSS1 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)

1a. The inner planets are Mercury, Venus, Earth, and Mars.

1b. Components of the solar system include:
1. The Sun
2. Planets
3. Moons
4. Asteroids
5. Comets
6. Meteoroids
7. Dwarf planets
8. Dust and gases

1c. Time taken to revolve around the Sun:
(i) Venus – 225 days
(ii) Earth – 365 days
(iii) Jupiter – 12 years
(iv) Mercury – 88 days

2a. Contact force is a force that occurs when two objects physically touch each other. Examples of non-contact force are:
1. Gravitational force
2. Magnetic force

2b. Two uses of friction:
1. It helps us to walk without slipping
2. It allows vehicles to move on roads without skidding

2c.
– Balanced force: When equal and opposite forces act on an object, causing no change in its motion.
– Unbalanced force: When the forces acting on an object are not equal, causing a change in motion.

3a. The three states of matter are solid, liquid, and gas.

3b.
– One use of hydrogen: Used as fuel in rockets
– One use of oxygen: Used for breathing in hospitals and scuba diving

3c. Diagram of the three states of water:

          [Solid]
         (Ice cubes)
             ↓ melts
          [Liquid]
           (Water)
             ↓ evaporates
           [Gas]
         (Water vapor)

4a. Four characteristics of outer space:
1. It is a vacuum (no air)
2. It is very cold
3. It has no gravity (microgravity)
4. It is dark and silent

4b. A piece of paper falls slowly because of air resistance, which opposes the force of gravity acting on it.

4c. The second biggest planet is Saturn.

4d. An eclipse is the total or partial blocking of light from one celestial body by another.

4e. Diagram of a solar eclipse:

        Sun -----> Moon -----> Earth
         (Light blocked by Moon causing shadow on Earth)

How to Pass Basic Science Exam Questions for JSS1 Third Term

Passing your Basic Science exam questions for JSS1 Third term requires a combination of preparation, understanding, and strategy. Here are actionable tips to help you excel:

1. Read Your Notes Every Day

Go through your Basic Science notes regularly. Focus on key third term topics like the solar system, force, states of matter, and outer space.

2. Memorize Definitions and Examples

Be familiar with definitions like contact force, eclipse, and states of matter. Also, know examples of each term and where they apply in real life.

3. Practice with Past Questions

Try past exam questions and write out the answers. This helps you understand the exam pattern and how questions are asked.

4. Study with Diagrams

Many Basic Science questions involve diagrams (e.g., eclipse, states of water). Draw and label these diagrams during your revision.

5. Understand Concepts, Don’t Just Cram

Don’t just memorize facts—understand how and why things happen. This helps you answer questions that require explanations.

6. Join a Study Group or Ask Questions

Discuss topics with friends or ask your teacher when you’re confused. Sharing ideas makes learning easier and faster.

7. Use Flashcards and Notes

Create small cards with questions and answers to test yourself quickly. They help you revise even when you’re busy.

8. Be Calm and Confident

During the exam, stay calm. Read each question carefully and manage your time well. Answer the ones you know first.

It’s a wrap!

If you need more clarification on JSS1 Third Term Questions on Basic Science, you can use the comments box below. We’ll be there to answer you asap.

Best wishes.