Earth Systems

5. A distinct layer or component of Earth, such as the atmosphere or hydrosphere.
6. The atmospheric layer with very high temperatures and auroras.
10. A point or level at which a significant change or effect begins to occur in a system.
11. A system that exchanges matter and energy with its surroundings.
14. The layer of Earth's atmosphere above the troposphere, containing the ozone layer.
15. The outermost layer of Earth's atmosphere, where it transitions to space.
17. A system where matter does not enter or leave.

1. Linked or related in such a way that each part affects or depends on the others.
2. All of Earth's water in the form of liquid, ice, and vapor.
3. The frozen water part of Earth’s system, including glaciers and ice caps.
4. All living organisms on Earth and their environments.
7. The lowest layer of Earth's atmosphere where weather occurs.
8. Individual parts or elements that make up a system.
9. Observable events or occurrences in nature that can be studied scientifically.
12. The solid part of Earth, including rocks, minerals, and landforms.
13. The atmospheric layer above the stratosphere where meteors burn up.
16. A group of parts that work together as a whole.