Across
- 2. natural resources that are limited in supply
- 9. energy stored in the bonds of chemical compounds
- 10. energy from the movement of charged particles
Down
- 1. a form of potential energy
- 3. resources that can be replenished or have limitless supply
- 4. warming of the Earth caused by humans
- 5. kinetic energy with the ability to make types of light visible
- 6. the use of nuclear reactions to produce electricity
- 7. methane that is usually located near petroleum or coal
- 8. oil obtained from the ground