Across
- 3. cracks in the earth's crust.
- 7. Ancient human or animal remains
- 8. A complete orbit around the sun.
- 9. Giant slow moving sheets of ice.
- 12. Undersea earthquakes which cause massive waves
- 14. the process of breaking down rock.
- 17. A group of satellites travelling the earth.
- 18. A tool to help geographers gather information.
- 19. A layer of rock surrounding the earth's core
- 20. Individual features of the land
- 21. The earth's crust is a series of huge slabs of rock that move.
- 24. The outermost layer of the earth.
- 26. The layer of air surrounding earth.
- 27. ancient tools, pottery, and other items.
Down
- 1. A year that contains one extra day.
- 2. The day that contains the most hours of sunlight or darkness.
- 4. Melted rock found in the mantle.
- 5. The sun, and the thousands of bodies that surround it.
- 6. One of seven massive land areas.
- 10. Violent and sudden movement of the earth's crust.
- 11. Natural Surroundings
- 13. An imaginary line that runs through earth's center from North to South Pole.
- 15. The process of moving weathered material.
- 16. The study of earth in all its variety.
- 22. When day and night are of equal length in both hemispheres.
- 23. The innermost layer of the earth.
- 25. A planet's path around the sun.