Second Term examination Basic Science Basic 7 (JSS 1) – Exam Questions

BASIC SCIENCE 

THEME – BASIC SCIENCE AND TECHNOLOGY 

CRN INTERNATIONAL SCHOOL 

SECOND TERM 

BASIC 7 (JSS 1) 

SECTION A

ANSWER ALL QUESTIONS 

1. ______________ is the energy that cannot be replaced after use.

(a) Solar energy

(b) Wind energy

(c) Water energy

(d) Non – renewable

 

2. All are examples of non – renewable energy except ______________.

(a) kerosene

(b) water

(c) coal

(d) wood

 

3. Hepatitis B is an example of STI .
(a) Yes

(b) No

(c) None of the above

(d) All of the above

 

4. V D means ______________.

(a) video player

(b) video disease

(c) venereal disease

(d) vaginal disease

 

5. H I V is transmitted from human to ______________.

(a) human

(b) goat

(c) monkey

(d) chicken

6. ______________ multiplies rapidly within the first 3 months.
(a) Malaria

(b) Typhoid

(c) H I V

(d) S T I

 

7. H I V minor signs include ______________ except.

(a) loss of memory

(b) nerve damage

(c) diarrhea more than a month

(d) thrush in the mouth and throat

 

8. Less than ___% of all the earth’s water is available as fresh water.

(a) 1

(b) 2

(c) 3

(d) 4

 

9. ______________ are material and energy that cause pollution.

(a) Pollutants

(b) Population

(c) Pollination

(d) Poll

 

10. Dry air contains ____% of nitrogen.

(a) 21

(b) 78

(c) 7.8

(d) 2.1

11. Excessive ______________ do not allow plant grow.

(a) fertilizer

(b) sugar

(c) water

(d) crop

 

12. Essential plant nutrients are all except ______________.

(a) nitrogen

(b) iron

(c) calcium

(d) lead

 

13. All are forms of energy except ______________.

(a) electrical

(b) electronic

(c) light

(d) heat

 

14. ______________ energy is used to operate most of the home appliances.

(a) heat

(b) sound

(c) electrical

(d) solar

 

15. Renewable energy is an energy which can be replaced as they are used.

(a)  Yes

(b) No

(c) Maybe

(d) May

16. Coal, wood, natural gas are examples of ______________ energy.

 

17. ______________ Converts mechanical energy to electrical energy.

 

18. ______________ energy produces great energy to operate air craft.

19. Salt (excess) in topsoil does not allow ______________ to grow.

 

20. ______________ is not curable.

SECTION B: THEORY

ANSWER ALL QUESTIONS 

QUESTIONS 1

a. State three modes through which HIV can be transmitted.

 

b. What does STI’s stand for?

 

QUESTION 2

a. State three forms of energy.

 

b. What are two uses of energy?

 

QUESTION 3

State a device that converts:

a. Electrical to mechanical energy.

 

b. Electrical to heat energy.

 

QUESTION 4

a . Define soil pollution

 

b. Highlight 2 sources of water pollution