Across
- 2. a fossil fuel formed by the breakdown of plant material hundreds of millions of years ago
- 4. any organic (plant or animal) material that is available on a renewable basis
- 6. grill season time!
- 7. where all energy on earth originates
- 11. energy in moving objects
- 15. generally refers to crude oil or the refined products obtained from the processing of crude oil
- 16. falling off of a cliff
- 17. an odorless, colorless, tasteless, non-toxic, clean-burning fossil fuel
- 18. heat energy
- 20. energy from squashing or changing shape
- 21. renewable source of energy used to turn turbines to generate electricity
Down
- 1. travels in waves
- 3. stored energy
- 5. energy of vibrations
- 7. the radiant energy of the sun, which can be converted into other forms of energy, such as thermal energy or electricity
- 8. the heat energy that is produced by natural processes inside the Earth
- 9. moving energy
- 10. the ability to do work or cause change
- 12. eating food, coal and batteries are examples
- 13. energy locked in the nucleus of an atom
- 14. energy of moving electrons
- 19. energy that comes from moving water