Across
- 6. vibrations that travel through the air or another medium
- 8. a substance that is used up more quickly than it can replace itsel
- 9. an electromagnetic wave
- 11. relating to chemistry, or the interactions of substances
- 14. resource or source of energ
- 15. the capacity to do work
- 16. pulls objects with mass toward each other
- 17. able to resume its normal shape
Down
- 1. energy that comes from a source and travels through space at the speed of light.
- 2. relating to the nucleus of an atom.
- 3. having or showing the capacity to become or develop into something in the future
- 4. a hydroelectric power plant.
- 5. working or produced by machines or machinery
- 7. relating to or determined by the sun
- 10. relating to or resulting from motion.
- 12. operating by or producing electricit
- 13. an upward current of warm air