Basic Science Exam Questions for JSS1 Second 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 second 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 an introductory subject designed to help students develop an understanding of the natural world. It covers fundamental concepts in areas such as biology, chemistry, physics, and earth science. Through experiments, observations, and discussions, students learn about the environment, living organisms, matter, and energy. The subject encourages curiosity and critical thinking, laying the foundation for more advanced science studies in higher grades. Basic Science fosters an early interest in scientific inquiry and helps students appreciate the world around them.

The subject is offered by students in Primary school and Junior Secondary School under Basic Science and Technology.

Basic Science Exam Questions for JSS1 Second Term

Basic Science Exam Questions for JSS1 Second 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 answer all the four (4) questions.

Note that what you have below are JSS1 Basic Science Second Term Exam Past Questions made available to assist students in their revision for 2nd 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. The release of eggs (ova) in the female from the ovary to the fallopian tube is referred to as
A. menstruation        B. ovulation
C. reproduction        D. fertilization

2. The fusion of the nuclei of male and female sex cells (gametes) to form zygotes is called
A. ovulation           B. fertilization
C. implantation      D. puberty

3. Which of these cannot be regarded as an air pollutant?
A. Carbon monoxide     B. Smoke
C. Nitrogen                    D. Dust

4. Air pollutants can cause one of the following diseases:
A. Excretory diseases
B. Reproductive diseases
C. Respiratory diseases
D. Nervous diseases

5. The pregnancy period in mammals is otherwise called
A. gestation           B. incubation
C. regurgitation     D. menopause

6. Where does fertilization take place?
A. Uterus          B. Vagina
C. Ovary           D. Fallopian tube

7. The development of the embryo takes place in the
A. Uterus         B. Vagina
C. Ovary          D. Cervix

8. Cutting out of air supply to a human being is known as
A. suffocation       B. respiration
C. inflammation    D. instigation

9. The soil pollutants can be controlled by the following EXPECT
A. making use of biodegradable refuse to make manure
B. public education
C. burning of soil
D. minimising the use of insecticides and herbicides in the soil

10. Which of the following is NOT a water pollutant?
A. Soot                B. Detergent
C. Fertilizers        D. Pesticides

11. The two types of reproduction are
A. synthetic and authentic
B. sexual and bisexual
C. sexual and asexual
D. asexual and bisexual

12. The following are parts of female reproductive organs except
A. breast           B. cervix
C. womb           D. vagina

13. _________ is the contamination of our environment with dirty, poisonous and dangerous or hazardous substances
A. pollution        B. contamination
C. pollutants      D. home disturbance

14. The following are examples of air pollutants except
A. smoke       B. sulphur dioxide
C. dust           D. water

15. Which of the following can cause land pollution
A. water         B. refuse
C. dust           D. smoke

16. The following are ways of controlling water pollution except
A. creating good drainage system
B. proper disposal of sewage
C. oil spillage should be prevented
D. Sewage should be converted fertilizers

17. Cold sores all over the body is one of the sign and symptom of
A. pregnancy
B. severe headache
C. untreated toilet infection
D. HIV/AIDS

18. The correct full meaning of STI is
A. spiritually terminated Identity
B. sexually trampled infection
C. sexually transmitted Induction
D. sexually transmitted infection

19. Which of the following is the best way of preventing STI?
A. Public enlightenment
B. Abstinence
C. Early treatment in identified cases
D. Immunization

20. The following are symptoms of HIV/AIDS except
A. fever
B. frequent tiredness
C. weight loss
D. protruded stomach

21. Which of the following statements is true of HIV/AIDS
A. It can be cured
B. It can be contacted by hugging
C. it is the cause of fever
D. an infected pregnant woman can transmit the virus to her baby

22. HIV/AIDS can be contacted via the following ways except……
A. Hand shake
B. Sexual intercourse
C. Use of contaminated sharp objects
D. Transfusion of infected blood

23. Gonorrhea is caused by
A. Neisseria gonorrheae
B. Chlamydia trachomas
C. Syphilis
D. Virus

24. Pesticides and herbicides are responsible for which type of pollution
A. air           B. water
C. land        D. atmosphere

25. The following are control measures of air pollution except
A. Locating industries far from human habitation
B. Educating people on the dangers of air pollution
C. keeping houses well ventilated
D. allowing bush burning

26. HIV/AIDS patients can be detected facially
A. true            B. false
C. maybe        D. don’t know

27. The ability to do work is referred to as
A. power          B. energy
C. work            D. food

28. The following are natural sources of energy except
A. battery         B. food
C. sun               D. wind

29. The unit of energy is
A. Joules         B. watts
C. work           D. ability

30. Which of these devices can convert electrical energy to kinetic energy
A. electric bell         B. telephone
C. fan                      D. motor car

31. One of the following serves as a reproductive organ in a male
A. Uterus             B. Ureter
C. Urethra           D. Oviduct

32. Menopause is a stage where women are
A. able to produce eggs
B. produce eggs
C. able to menstruate
D. Unable to menstruate any more eggs and have stopped menstruation

33. Conception occurs when
A. sperm unites with ovum
B. sperm moves to the fallopian tube
C. the fertilized egg implants itself to the lining of the uterus
D. fertilized egg remains at the Oviduct

34. Conception occurs in the
A. Fallopian tube     B. Oviduct
C. Vagina                 D. Uterus/womb

35. One advantage of maintaining cleanliness and hygiene during menstruation is —–
A. It prevents cold and catarrh
B. it allows flexibility
C. it prevents body odour and discomfort
D. It shows a sense of maturity

36. Water pollution may be controlled by
A. repair of leakages in roofs
B. sweeping the surroundings regularly
C. disposing of refuse properly
D. making good soakaway pits

37. Which of the gases below can be reduced by water pollution and cause the death of aquatic life?
A. Carbon (IV) oxide
B. Carbon (II) oxide
C. Nitrogen
D. Oxygen

38. Soil pollutants are substances that —–
A. improve the quality of the soil
B. affect the quality of the soil
C. manage the quality of the soil
D. are none of the above

39. When ozone layer is depleted (reduced), it means
A. global warming occurs
B. Chlorine in chlorofluoro carbon is removed from the ozone layer
C. the ozone layer shields the inhabitants of the earth from skin cancer
D. the ozone layer is attacked by chlorine in CFC’s and can’t protect as expected

40. Which of the following is the effect of too much sewage in water?
A. decrease in the production of germs
B. decrease in the growth of germs
C. increase in the production of germs
D. increase in the growth of germs

41. ______ energy is the energy resource that can be replaced as it is used up.
A. Kinetic               B. Renewable
C. Potential            D. Chemical

42. The type of pollution whose effect is respiratory disorder is ______.
A. Water pollution
B. Land pollution
C. Air pollution
D. Noise pollution

43. An electric pressing iron converts electrical energy to ______ energy.
A. Light            B. Sound
C. Heat            D. Chemical

44. The kind of energy present in the food we eat is called ______ energy.
A. Chemical         B. Electrical
C. Kinetic             D. Solar

45. The organ in the female reproductive system which houses the baby till birth is called the ______.
A. Ovary
B. Uterus
C. Fallopian tube
D. Cervix

46. A bicycle dynamo converts ______ energy to light energy.
A. Sound                 B. Heat
C. Mechanical         D. Solar

47. The type of reproduction humans practice is ______ reproduction.
A. Asexual              B. Sexual
C. Budding             D. Vegetative

48. The male sex cell is called ______.
A. Egg                B. Embryo
C. Sperm            D. Ovum

49. Dirty, poisonous, and hazardous substances are called ______.
A. Pollutants          B. Microorganisms
C. Nutrients           D. Particles

50. The release of poisonous gases into the atmosphere is called ______ pollution.
A. Water             B. Air
C. Land               D. Noise

SECTION B: Essay

INSTRUCTION – Attempt any three questions in this section. All questions carry equal mark.

1A. What is pollution?
1B. List the three types of pollution and explain any two.
1C. List three examples of sexually transmitted infections that you know.

2A. What are pollutants?
2B. Highlight three effects of water pollution.
2C. Enumerate three cause of air pollution.
2D. Identify two control of land pollution.

3A. What is STI?
3B. List two consequences of STIs.
3C. Define air pollution.
3D. State four ways of transmitting HIV/AIDS.

4A. Define energy.
4B. State the law of conservation of energy.
4C. Mention three uses of energy.
4D. List three land/soil pollutants.

5A. What are non-renewable sources of energy?
5B. What is oil spillage?
5C. State three effect of land pollution.
5D. State three ways of preventing HIV/AIDS.

Answers to Basic Science Exam Questions for JSS1 Second 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 second 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 second 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. What is pollution?

Pollution is the introduction of harmful substances or contaminants into the environment, causing adverse effects on living organisms and ecosystems.

1B. List the three types of pollution and explain any two.

1. Air Pollution: The contamination of the atmosphere with harmful gases, chemicals, and particles.
2. Water Pollution: The contamination of water bodies like rivers, lakes, and oceans with harmful substances.
3. Land Pollution: The degradation of the land through the disposal of waste materials, chemicals, and improper land use.

1C. List three examples of sexually transmitted infections that you know.

1. HIV/AIDS
2. Gonorrhea
3. Syphilis

2A. What are pollutants?

Pollutants are harmful substances or contaminants that pollute the environment, such as chemicals, waste products, and harmful particles.

2B. Highlight three effects of water pollution.

1. Harmful effects on aquatic life.
2. Contamination of drinking water, leading to health risks.
3. Disruption of ecosystems and loss of biodiversity.

2C. Enumerate three causes of air pollution.

1. Emission of gases from vehicles and industries.
2. Burning of fossil fuels.
3. Agricultural practices, such as the burning of crop residues.

2D. Identify two controls of land pollution.

1. Proper waste disposal and recycling.
2. Use of eco-friendly and biodegradable products.

3A. What is STI?

A sexually transmitted infection (STI) is an infection transmitted through sexual contact, caused by bacteria, viruses, or parasites.

3B. List two consequences of STIs.

1. Infertility
2. Increased risk of contracting HIV

3C. Define air pollution.

Air pollution is the presence of harmful substances, including gases and particulate matter, in the air that can negatively affect human health and the environment.

3D. State four ways of transmitting HIV/AIDS.

1. Unprotected sexual contact.
2. Sharing of contaminated needles.
3. From mother to child during childbirth or breastfeeding.
4. Blood transfusions with infected blood.

4A. Define energy.

Energy is the ability to do work or cause change, existing in various forms such as kinetic, potential, thermal, and chemical energy.

4B. State the law of conservation of energy.

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

4C. Mention three uses of energy.

1. Heating and cooling.
2. Transportation (fuel for vehicles).
3. Powering electronic devices and machinery.

4D. List three land/soil pollutants.

1. Pesticides
2. Heavy metals (e.g., lead)
3. Plastics

5A. What are non-renewable sources of energy?

Non-renewable sources of energy are energy resources that cannot be replenished naturally in a short period, such as coal, oil, and natural gas.

5B. What is oil spillage?

Oil spillage refers to the accidental release of petroleum products into the environment, particularly into bodies of water, causing harm to aquatic life and ecosystems.

5C. State three effects of land pollution.

1. Soil degradation and reduced agricultural productivity.
2. Contamination of groundwater and water sources.
3. Loss of biodiversity due to habitat destruction.

5D. State three ways of preventing HIV/AIDS.

1. Practicing safe sex (using condoms).
2. Avoiding sharing needles and other sharp objects.
3. Getting tested and knowing your HIV status.

How to Pass Basic Science Exam Questions for JSS1 Second Term

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

1. Study Your Notes & Textbooks – Go through all topics covered in class.
2. Understand Key Concepts – Focus on pollution, energy, STIs, and their effects.
3. Practice Past Questions – Solve previous exam questions to get familiar with the format.
4. Revise Regularly – Don’t wait till the last minute; revise daily.
5. Join Study Groups – Discussing with friends can help reinforce learning.
6. Listen in Class – Pay attention and ask questions when confused.
7. Use Mnemonics – Create memory aids to remember facts easily.
8. Stay Healthy – Eat well, rest, and stay hydrated before the exam.

Best wishes.