Across
- 3. The transfer of heat in the stationary system.
- 7. Organisms communicating in there environment.
- 8. The amount of useful energy something uses.
- 9. Saving energy.
- 10. A source that can be replaced.
- 11. The energy of motion through waves.
- 13. Movement of electrons.
- 14. A need to do work.
- 15. One form of energy made into another.
Down
- 1. Energy from the sun and comes from X Rays.
- 2. A source that cant be replaced.
- 4. Energy that does nothing.
- 5. The transfer of heat in the circulatory system.
- 6. Stored energy that cant be used.
- 12. Is a need to perform work.