Available Answers

1. 1.

   What do you mean by a reversible change?

2. 2.

   What do you mean by an irreversible change?

3. 3.

   What are physical changes? Give two examples.

4. 4.

   What are chemical changes? Give two examples.

5. 5.

   Describe a reversible change that you can bring about by heating.

6. 6.

   Describe an irreversible change that you can bring about by heating.