Across
- 2. the frozen water part of the Earth system
- 4. all living organisms and ecosystems
- 6. days when the sun reaches its highest or lowest point
- 9. the lines of latitude parallel to the equator
- 12. the solid part of Earth, including rocks and soil
- 13. a day where day and night are equal lengths
- 14. the layer of gasses surrounding the Earth
Down
- 1. Processes in which the output of a system influences its own input.
- 3. all water bodies, including oceans, rivers, and glaciers
- 5. Energy emitted by the Sun in the form of electromagnetic waves
- 7. shape of the earth
- 8. 23.5 degrees
- 10. A system in which energy can enter and leave, but matter cannot.
- 11. measurement north/south of the equator
- 12. measurement east/west of the prime meridian