Across
- 2. an organism that makes its own energy-rich food compound using sun's energy
- 7. all of Earth's water in all 3 states of matter
- 8. process by which sugar and oxygen are converted into CO2 in water to provide energy for cell
- 11. non living physical/chemical components of an ecosystem
- 13. process in which sun's energy is converted into chemical energy
- 14. zone around Earth where life can exist
- 15. ecosystem maintained through natural processes
- 16. visible from of radiant energy
Down
- 1. form of energy transferred during heating/cooling
- 3. an organism that obtains its energy from consuming other organisms
- 4. energy that travels through empty space
- 5. living things, their remains, and features associated with their activities
- 6. niche the function a species serves in its ecosystem
- 9. layer of gases surrounding Earth
- 10. Earth's solid outer layer
- 12. ability to maintain ecological balance
- 17. all the living organisms and the physical/chemical environment