Across
- 3. a viscous liquid derived from petroleum, especially for use as a fuel or lubricant.
- 4. a type of energy formed by the splitting of uranium
- 6. a type of energy formed by plants
- 7. energy from magma deep in the earth
- 8. A solid fossil fuel that forms over millions of years.
Down
- 1. energy produced from the movement of water
- 2. from the sun
- 5. the changing of the climate