Matter: 5 practice questions

The water cycle describes how water:

1. disappears forever once it evaporates
2. never changes state
3. evaporates, forms clouds, and falls again as rain
4. only exists in rivers

Which process changes liquid water into water vapour?

1. Freezing
2. Melting only
3. Condensation only
4. Evaporation

Boiling contaminated water before drinking it is one method of:

1. purifying water
2. polluting water
3. wasting water
4. colouring water

The sun's light and warmth are important to living things mainly because they:

1. have no real effect on plants or animals
2. support growth and provide energy for life
3. only make the sky look nice
4. cause water to disappear forever

Which of these best shows a change in the state of matter?

1. A stone staying a stone
2. A book staying a book
3. Ice melting into water
4. A chair staying a chair