Across
- 4. One of the oldest and largest sources of renewable energy
- 6. The heat and light we receive from the sun are energy
- 7. Energy produced through the wind is called energy
- 8. Renewable organic matter that comes from plants and animals.
Down
- 1. Energy that comes from the heat inside the earth is energy
- 2. Ability to do work
- 3. Sources that causes no impact on nature
- 5. Example of a non-renewable source of energy that starts with a "P"