Across
- 3. the top layer of Earth where plants grow
- 4. the mixture of gases around the Earth
- 7. one fourth part of something
- 9. large bodies of salty water covering most of the Earth
- 11. large bodies of freshwater surrounded by land
- 13. the existence of living things
- 14. surface the outer layer of the Earth we live on
Down
- 1. a place that protects from weather or danger
- 2. the place where something comes from
- 5. frozen water
- 6. substances that provide food or support growth
- 8. large natural streams of flowing water
- 10. water water that contains salt, like in the sea
- 12. small flowing bodies of water