Worksheet Chapter 5: Matter

1. True or False: Diffusion occurs at a faster rate in liquids than in gases.

2. Fill in the blank: The scientific term for the movement of particles from a region of higher concentration to a region of lower concentration is ________.

3. True or False: During a change of physical state, such as ice melting into liquid water, the temperature remains constant.

4. Compare the arrangement and movement of particles in a solid versus a gas based on kinetic theory.

5. Classify the following properties into physical or chemical properties: (a) Rusting of iron, (b) Boiling point of water at 100°C.

6. Which state of matter has no fixed shape and no fixed volume, and can be easily compressed?

7. State the two essential criteria required for something to be classified as matter.

8. Explain two key differences between evaporation and boiling.

9. Identify the state change process for each transition: (a) Water vapor turning into water drops on cold glass, (b) Solid mothballs shrinking and turning into gas, (c) Molten candle wax hardening into solid wax.

10. A balloon filled with air shrinks slightly when placed inside a cold refrigerator. Explain this observation using kinetic theory of matter.