Len Academy Examination Questions for Basic Science, JSS3, 2nd Term

Basic Science Questions, JSS3, Second Term:

1. _____ is a branch of a science that deals with the study of life.

1. Biology
2. Chemistry
3. Physics
4. Geography

Please read this article here for correct Answer.

2. Objectives of drug usage includes the following EXCEPT _____.

1. To combat diseases
2. To provide energy
3. To relieve suffering
4. To save life

Please read on the meaning of Drug, Types and Side Effects of Drugs here.

3. An element with a valency of +4 is _____.

1. Potassium
2. Calcium
3. Carbon
4. Nitrogen

Please read on Periodic Table and Classification of Elements here.

4. _____ is formed when an acid is dissolved in water.

1. H₂O⁺
2. OH^-
3. H₃O⁺
4. H₂O^-

Please read on the Definitions of an Acid here.

5. Which of the following elements is NOT a noble gas?

1. He
2. Ne
3. Be
4. Ar

6. A damp _____ litmus paper turns _____ in NaOH.

1. Red, Blue
2. Blue, Red
3. Blue, Colourless
4. Red, Neutral

You can read on the Physical and Chemical Properties of Acids here.

7. The S.I unit for electric current is the _____.

1. Volt
2. Ohm
3. Ampere
4. Watt

Please read on the Fundamental Quantities and Units in Physics here.

8. The image formed in the pin-hole camera is _____.

1. Reflected
2. Refracted
3. Inverted
4. Upright

9. A chemical change will not include _____.

1. Rotting of leaves
2. Melting of Candle wax
3. Corrosion of iron
4. Burning of wood

Please read on Physical and Chemical Changes here.

10. A ball with a mass of 20g rolls from a height of 8m. Calculate its kinetic energy when it has a velocity of 2ms^-1.

1. 1.6J
2. 0.12J
3. 0.6J
4. 0.4J

Please read on the concepts of Velocity and Acceleration here.

11. The valency of 'N' in NaNO3 is _____.

1. -1
2. +1
3. -5
4. +5

You can attempt Len Academy Questions on various Subjects (with Answers) here.

12. Myopia can be corrected with glasses that have _____ lenses.

1. Concave
2. Convex
3. Irregular
4. Regular

13. The vector of river blindness is _____.

1. Mosquito
2. Plasmodium
3. Blackfly
4. Tsetse fly

Please read on Vector of Diseases, Vector Borne Organisms and the Diseases they cause here.

14. _____ atoms are present in H₂SO₄.

1. 3
2. 5
3. 7
4. 9

Please read the concept of Molar Mass with some worked examples here.

15. The spontaneous emission of particles or rays as seen in the nucleus of certain atoms is termed _____.

1. Nuclear Fission
2. Nuclear Fusion
3. Radioactivity
4. Gamma

16. Components of Information and Communication Technology (ICT) will NOT include _____.

1. Post Office
2. Electronic Mail
3. Television
4. Internet

You can read on the Internet of Things (IoT) here.

17. Certain plants are able to survive in water because _____.

1. Their shoots are well developed
2. They have flowers
3. Their leaves have air spaces
4. Their cuticle are well developed

You can read on the Differences between Plants and Crops here.

18. A hormone that increases the body's metabolic function is _____.

1. Thyroxine
2. Aldosterone
3. Testosterone
4. Progesterone

Please read on Homeostasis and Negative Feedback Mechanism here.

19. Rods and Cones of the eyes are concentrated in the _____.

1. Sclera
2. Fovea Centralis
3. Blind Spot
4. Cornea

20. The final bending adjustment of light into the retina is done by the _____.

1. Lens
2. Iris
3. Pupil
4. Cornea

Please read on what every Student is expected to know here.

21. A bone found in the middle ear is the _____.

1. Stapedius
2. Incus
3. Patella
4. Scaphoid

Please read on all the Bones of the Human Skeleton explained with diagrams here.

22. The function of chlorine in the water purification process is to _____.

1. Filter the water
2. Kill micro-organisms
3. Improve its taste
4. Make it colourless

23. The vitamin obtained from the sun functions to _____.

1. Prevent hypermetropia
2. Build our skin
3. Build our bones
4. Prevent Myopia

You can read on the Sources, Functions and Deficiencies of Macronutrients here.

24. Desertification is likely to occur in which Nigerian State?

1. Gombe
2. Rivers
3. Imo
4. Ogun

Please read on the Desert Biome here.

25. The ozone layer of the atmosphere is composed of _____.

1. O
2. O₂
3. O₃
4. O₄

Please read on the Layers of the Atmosphere here.

26. The following activities of man will cause flooding EXCEPT

1. Deforestation
2. Availability of drainage facilities
3. Poor farming practices
4. None of the above

You can read on Soil Erosion and Types of Soil Erosion here.

27. The energy currency in the body is _____.

1. ATP
2. Starch
3. Glucose
4. Carbohydrates

Please read on the Characteristics of Living Organisms. (Answer is present here).

28. _____ is a contagious disease.

1. Tetanus
2. Beriberi
3. Marasmus
4. Tuberculosis

You can read on Micro-organisms causing Food, Water and Air Borne Diseases here.

29. A petrochemical will NOT include _____.

1. Detergent
2. Aqueous Sodium Chloride
3. Nylon
4. Plastics

30. The pH value representing the most acidic solution is _____.

1. 1.0
2. 7.0
3. 7.5
4. 14.0

Please read on various Agricultural Terms and Meanings. (pH is explained here).

You can Attempt Len Academy Mid-Term Test Questions for JSS1 here.

You can attempt Len Academy Basic Science Examination Questions for JSS1, 2nd Term here.

You can read various articles on Basic Science here

You can read various articles on Biology here

You can read various articles on Chemistry here

You can read various articles on Physics here