Across
- 3. A hard, clear material used to make windows.
- 4. A container used to hold water or other drinks.
- 7. To process old things to make new things.
- 9. The color of grass, leaves, and ecology.
- 10. A container where we put our garbage.
- 11. Things we don't need anymore and throw away.
- 13. The opposite of dirty.
- 15. To protect something, like the planet or the animals.
- 16. An animal with wings and feathers that flies in the sky.
Down
- 1. A material used for bottles and bags that takes a long time to disappear.
- 2. Material we write on, made from trees.
- 5. The good gas that trees make and we need to live.
- 6. A living thing with leaves that grows in the earth.
- 8. Animals that live and swim in the water.
- 10. A vehicle with two wheels. Riding it doesn't pollute!
- 12. A large area of salty water where fish live.
- 14. The invisible gas around us that we breathe.