Across
- 5. colorless and non-flammable gas
- 7. the act or process of breathing
- 8. its a cycle which water circulates between earths oceans and etc
- 11. its apart of earth where living things thrive and live
- 12. gases that surround earth
Down
- 1. remains of a once-living thing
- 2. converting light into chemical energy
- 3. water vapor that falls from the clouds
- 4. when the sun heats water on plant leaves changing it to water vapor
- 6. - extremally small germs you cant see with your eyes
- 9. changes from liquid into gas
- 10. a plant that is used as dry grains and the seed is also called a pulse