Across
- 3. makes seeing things possible
- 4. a circular path always needed to get electricity to flow
- 7. energy of movement
- 9. the movement of an object
Down
- 1. stored energy.
- 2. a form of energy living beings can hear through sound waves
- 5. sending out rays of light
- 6. nuclear reactions used to make energy
- 8. the capacity for doing work