Across
- 1. Energy from the sun.
- 4. Energy that can be replaced naturally.
- 8. Energy produced from water.
- 9. Something that is not needed and is thrown away.
- 13. The Earth is the ____________ we live on.
- 15. Everything around us, including air, water and land.
- 16. When a species no longer exists.
- 17. Harmful substances that damage the air, water, or land.
Down
- 2. Turning old items into new things instead of throwing htem away.
- 3. To use something again instead of throwing it away.
- 5. Energy from moving air.
- 6. To save or protect resources, like water or energy.
- 7. Energy from heath beneath the Earth's surface.
- 10. Our home planet, where we live and play.
- 11. The color of grass, trees, and many plants.
- 12. A large area of trees and plants.
- 14. The month we celebrate Earth Day.
