Page 248 - Primary Five Science

Revision Questions

1. What is matter?

2. Differentiate between kinetic and potential energy

3. Mention 3 forms of energy

4. Mention 2 source of heat

5. Why are gaps left between railway lines

6. Why are electric lines appear to be sagging in hot weather

and tight during cold weather?

7. State the means by which heat travels through;

(a)Gasses

(b)Liquids

(c)Solids

8. In each case, give 2 examples in which heat travels by;

(a)conduction

(b)Convection

(c)Radiation

9. Why should there be a vacuum space in flask?

10. Why is it important to paint buildings and cars bright col-

ours