Across
- 2. the energy of moving particles
- 7. Organic matter such as dried sludge from a sewage system plant that can be used as fuel
- 8. natural resources that are unlimited or are replaced by nature as quickly as people use them
- 10. type of energy of moving objects
- 11. type of energy stored in the bonds that hold atoms together
- 12. natural resources that cannot be replaced by nature as quickly as they are used by people
- 14. any energy source, organism, or substance found in nature that people use
Down
- 1. can be harmful to human health if not disposed of properly
- 3. energy that travels as waves through space
- 4. a nonrenewable source of energy formed from ancient plants and animals buried in the earth
- 5. to decrease seriously or to exhaust the abundance of supply
- 6. type of energy that is moving electrons
- 9. type of energy formed by splitting radioactive atoms
- 13. the ability to move, do work, or cause change