Across
- 3. they make up the crust and upper mantle
- 8. all life and habitats on Earth
- 9. explanation based on observations and repeated experiments
- 10. satellite ___poseidon
- 11. studies Earth's material and processes that make them
- 12. part of Earth's hydrosphere
- 13. unit of mass
- 14. application of scientific discoveries
- 15. study of objects beyond Earth's atmosphere
Down
- 1. a standard for comparison in an experiment
- 2. variable that changes in response to the manipulated variable
- 4. the basic fact that describes a natural phenomenon
- 5. part of the lithosphere
- 6. gas that makes up part of our atmosphere
- 7. study of Earth's atmosphere