Second Term examination Basic Science Basic 9 (JSS 3) – Exam Questions
BASIC SCIENCE
JUNIOR SECONDARY SCHOOLS
SECOND TERM EXAMINATION
CLASS – BASIC 9 (JSS 3)
Relevant exam questions
SECTION A
ANSWER ALL THE QUESTIONS IN THIS SECTION
1. ______________ is transmitted through the air to our ears.
(a) Light
(b) Sound
(c) Breeze
(d) noise
2. The outer ear is called ______________.
(a) eardrum
(b) auditory meatus
(c) pinna
(d) canal
3. Radioactive elements are ______________ of atoms of elements.
(a) isotopy
(b) isotopes
(c) covalent
(d) ionic
4. The revolution of the moon round the earth causes ______________.
(a) day
(b) mouth
(c) season
(d) year
5. Some sounding instruments includes all except ______________.
(a) hard sticks
(b) talking drum
(c) whistle
(d) toothpaste
6. Like poles ______________ and unlike poles attract.
(a) contract
(b) repel
(c) dismantle
(d) disengage
7. Ammeters are measured in Ampere, while voltmeters are measured in ______________.
(a) ammeter
(b) volt
(c) vetter
(d) voter
8. ______________ is a natural oxide of iron.
(a) hydroxide
(b) peroxide
(c) sodium hydroxide
(d) loadstone
9. Elements in house circuit include all except ______________.
(a) circuit breaker
(b) meter box
(c) tester
(d) fuse box
10. The temperature at which a substance changes from liquid to vapour is ______________ Point.
(a) boiling
(b) freezing
(c) melting
(d) vapour
11. Loadstone was discovered in ______________ over 2000 years ago.
(a) India
(b) China
(c) America
(d) Korea
12. Apple fruit contains ______________ acid.
(a) citric
(b) acetic
(c) ascorbic
(d) tartaric
13. The function of lipase is to digest ______________.
(a) starch
(b) proteins
(c) fats
(d) vitamins
14. ______________ energy are energy gotten due to electron flow.
(a) electrical
(b) potential
(c) mechanical
(d) nuclear
15. Which of the following blood group is a universal donor?
(a) AB
(b) O
(c) A
(d) B
16. ______________ is the spontaneous decay of the electron.
17. The sound waves make the thin membrane called the ______________ to vibrate.
18. ______________ field is the region of space where magnetic force could be felt.
19. ______________ starts to produce sex cells during puberty.
20. Induced abortion is a type of abortion. YES/NO.
SECTION B
ANSWER FOUR (4) QUESTIONS ONLY.
QUESTION 1
a. Define loadstone.
b. State any two laws of magnetism
QUESTION 2
a .What are electrons?
b. List two measuring instruments in electric currents.
QUESTION 3
a. In a diagram, illustrate parallel circuit
b. Mention two major ways of connecting electrical circuit.
QUESTION 4
a. Mention four reasons for skill acquisition.
b. Write three importance of skill acquisition.
QUESTION 5
a. What is (i) Teenage pregnancy (ii) Radioactive
b. List any five radioactive elements.
QUESTION 6
a. Define abortion.
b. List three types of radiation.
GOOD LUCK