Across
- 3. Earth is the only planet in our ______ ______ that has these four systems
- 6. the bioshpere is able to support so many kinds of living things because of its _________ with other spheres
- 7. synonym for melted
- 8. collection of parts that work together
- 9. Earth system that includes rocks, soil, and sediments
Down
- 1. made up of the outer, rocky parts of the Earth and includes the crust and the outer, rigid part of the mantle
- 2. Earth system that includes all living things, including humans
- 4. this makes up about 84% of Earth's total volume
- 5. ______ are present in all parts of earth, from its surface to its very center