Across
- 2. Bright, hot, in the sky.
- 4. Plants getting bigger; maturing.
- 6. Our planet; where we live.
- 7. Things we throw away.
- 10. Reuse things; help the Earth.
- 12. Everything not made by humans.
- 14. What we breathe; invisible gas.
- 15. Outdoor green space for people.
Down
- 1. Light from the sun.
- 3. Tall, green, with leaves.
- 5. Rivers, lakes, oceans; wet.
- 8. Blue space above us.
- 9. Small thing plants grow from.
- 11. Not dirty; safe and healthy.
- 13. Living creatures, not plants.