Across
- 6. Energy is neither created nor destroyed, only transformed
- 7. the layer on which most visible light is emitted
- 11. a nonrenewable energy source that uses radioactive Uranium as a fuel
- 17. A renewable source from heat underground produced by Earth’s insides
- 18. Rain with a pH lower than normal caused by burning fossil fuels
- 21. Energy's capacity to change its form
- 24. An energy source that is derived from fossilized plants and animals
- 26. Solar wind is a layer of air that can move at 800 km/s
- 30. Sun-generated heat
Down
- 1. A energy produced by the tides
- 2. A source of energy made by water converted in a car by a special fuel cell
- 3. The most abundant and clean burning fuel in the United States
- 4. An unstable source of renewable energy that derives from the sun
- 5. the most common nonrenewable resource that releases sulfur dioxide
- 8. All energy on Earth comes from this source
- 9. A resource that uses animal and plant matter or waste
- 10. Fuels made from plants
- 12. The process of carbon exchange between organisms and the environment
- 13. The force of motion
- 14. An explosion of light
- 15. Energy transmitted via electromagnetic waves from the Sun
- 16. Resources that can be replenished quickly
- 19. partially decayed vegetation, causes lots of pollution when burned
- 20. Using water and a dam, this energy is renewable
- 22. darker, cooler areas of the surface
- 23. Energy stored in motion or at rest
- 25. The use of solar energy as a renewable energy source
- 27. Having the ability to work
- 28. Locating natural gas underground by using high pressured water
- 29. The longest wavelengths in the electromagnetic spectrum, but the travel at a slow speed