Science

Question 1

1Salt can be recovered from salt solution by

Easy

A. decantation B. sieving C. filtration D. evaporation

Question 2

2Iron filings can be separated from sulphur powder using

Easy

A. a sieve B. a magnet C. water D. heat

Question 3

3Which of the following substances is an acid?

Easy

A. soap solution B. lime juice C. wood ash solution D. baking soda solution

Question 4

4The process by which a solid changes directly into a gas is called

Easy

A. evaporation B. condensation C. sublimation D. melting

Question 5

5Which is a mixture?

Easy

A. carbon dioxide B. air C. gold D. water

Question 6

6The change of a gas into a liquid is

Easy

A. freezing B. melting C. evaporation D. condensation

Question 7

7Which is a living thing?

Easy

A. stone B. water C. iron D. mushroom

Question 8

8Which property of metals allows them to be drawn into wires?

Easy

A. ductility B. brittleness C. malleability D. lustre

Question 9

9A solution with a pH of 12 is

Easy

A. neutral B. strongly acidic C. alkaline D. weakly acidic

Question 10

10Which metal is liquid at room temperature?

Easy

A. aluminium B. copper C. mercury D. iron