1. One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?

2. Cake batter baked in an oven

3. Water freezing

4. Freezing juice is an example of a(n) ________

5. What type of change is the bursting of a cracker ?

6. What type of change is the lighting of a bulb?

7. Which of the following is a reversible change?

8. Which of the following is an example of an irreversible change that takes place when heat is supplied?

9. What type of changes are the blowing of balloon and it's bursting?

10. Which of the following is an irreversible change and does not require any heat?