Across
- 3. made by nature not by people
- 7. the small hard parts from which new plants grow
- 8. free from danger
- 10. a machine that is driven by a flow of gas or water
- 11. to become different
- 12. a gas in the air that we need to stay alive
Down
- 1. to use or have something with others
- 2. tiny drops of water in the air or on a surface
- 4. to eat a little bit of food to see what it is like
- 5. warmth
- 6. to use things again often by turning garbage into new products
- 9. very thin metal thread