Across
- 4. a form of electromagnetic radiation that is visible to the eye.
- 6. electrical current produced by water flowing through a turbine.
- 8. a natural resource that cannot be replaced reasonably soon.
- 11. a natural resource that can be replaced in a reasonable amount of time.
- 13. a gradual rise in Earth’s average temperature.
Down
- 1. energy that results from the movement of charged particles.
- 2. stored energy that is due to an object’s position.
- 3. a fuel formed deep in Earth’s crust from the remains of plants and animals.
- 5. energy of motion. The faster an object move.
- 7. the ability to cause changes, exert forces or do work.
- 9. energy stored in the bonds that hold atoms together.
- 10. energy released by changes to the nuclei of atoms.
- 12. energy of vibrating materials or air molecules.