Across
- 1. energy helps us to see things.
- 3. , cooking uses this energy.
- 4. , disadvantage of friction.
- 6. , moving object get their energy.
- 10. , energy uses by plants to make food.
- 11. , energy causes no pollution.
- 13. , Make surface smooth.
Down
- 2. , ball falls due to this fource.
- 5. , Lever balanced at this point.
- 7. , It Can neither be created nor be destroyed.
- 8. , energy received from Sun
- 9. Makes work easier.
- 11. , Ultimate source of energy.
- 12. energy , can uproout large trees.