Across
- 2. An energy resource that is easily replaced by natural methods
- 4. Mechanical energy in rising and falling tides
- 7. Thermal energy that originates deep within the earth's interior
- 10. A fuel that has formed from the remains of plants and animals that live in the past, including calm petroleum (oil), and and natural gas
- 12. Energy that an object possesses due to its motion
- 13. Energy produced by nuclear reactions
- 14. An energy resource that is not replaced naturally
Down
- 1. Electrical energy generated by the movement of water
- 3. Stored energy that can be used later
- 5. The ability to do work
- 6. The sum of the kinetic energy and all to all forms of potential energy in a system
- 8. Energy from the wind; can be used to turn blades that are attached to generators
- 9. Chemical potential energy obtained from renewable organic materials
- 11. Energy produced by the sun