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Changes in materials - Quiz

1.

Which substance can dissolve completely in water?

2.

Substances that dissolve in water are called

3.

How could you separate a mixture of sand and salt?

4.

Will the steam from seawater be salty?

5.

Are melting, freezing, boiling, evaporating and condensing ALWAYS reversible changes?

6.

Which of these is a reversible change?

7.

Which of these is an irreversible change?

8.

What new materials are formed when a candle burns?

9.

How could you change burnt paper back into its original form?

10.

Which of these statements is FALSE?

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