Across
- 2. A physical change for only sometime
- 6. A chemical change taking place forever
- 8. The rusting of iron is a chemical change that is
- 9. A change in which the original substance cannot be got back
- 10. This change is observed when a piece of magnesium wire is burnt
Down
- 1. A change we do not like
- 3. Reaction of strong acid with water is an example of _______ reaction in terms of absorption or release of heat
- 4. A change in which the original substance can be got back
- 5. A change that occurs again and again
- 7. A change in which new substance is formed