Across
- 2. another way of saying it is co2
- 4. a rotation of something
- 7. when water changes from a liquid to a gas
- 8. water travels on roots of plants to the surface
- 9. plants need it to survive
Down
- 1. this happens when it rains
- 3. we breathe it in
- 5. salt in water
- 6. falls from the clouds