Across
- 3. Wind and water energy are _______.
- 4. To use less energy.
- 7. The sun and stars are ______ sources of light.
- 8. Coal is a ________ source of energy.
- 9. The sun is an example of _____ energy.
- 10. Car lights are _____ sources of light.
- 11. Energy that produces movement.
- 12. Energy in the form of waves we detect with our ears.
Down
- 1. Energy that is produced by position.
- 2. A television is an example of ______ energy.
- 3. To donate old clothes.
- 5. _______ is caused by burning fossil fuels.
- 6. To separate materials from general waste.