Across
- 2. cycle Continuous circulation of water through the hydrosphere
- 6. Contains all the water near or at Earth's surface
- 7. A representation of an object too big, small, or fast to view with the naked eye
- 8. system Both energy and matter can enter and leave freely
- 10. change Does not change identity and can be undone
- 11. The sphere that contains life
- 12. cycle Biogeochemical cycle involving carbon
Down
- 1. Cycling of water vapor through evaporation and transpiration
- 3. Gaseous envelope surrounding Earth that protects us
- 4. A model that you cannot change and usually involves time as a variable
- 5. The Earth itself-rocks, mountains, beaches
- 9. system Energy may enter, but matter doesn't leave or enter