Across
- 1. Spinning of Earth.
- 5. Speed to leave gravity.
- 7. Distance from equator.
- 9. Solid center of Earth.
- 11. Thick middle layer.
- 12. Crust-mantle boundary.
- 13. Farthest from Sun.
- 14. Layer separation by density.
- 15. Rigid outer layer.
Down
- 2. Liquid metal layer.
- 3. Seafloor crust layer.
- 4. Closest to Sun.
- 6. One noon-to-noon cycle.
- 8. Shortest daylight day.
- 10. Outer layer of Earth.
