Across
- 2. A day with the most hours of sunlight.
- 7. A theory that states that the earth's crust is not an unbroken shell, but is made of plates that move
- 8. Giant, slow-moving sheets of ice
- 10. Natural surroundings
- 11. Huge waves caused by sudden and violent movements from the ocean floor
- 13. Process of wearing away or moving weathered material
- 15. Individual features of land ex: mountains,valleys
- 16. A planet's complete orbit around the sun
- 18. A planet's path around the sun
- 21. Cracks in the Earth's Crust
- 22. Process of breaking surface rock into boulders, gravel, sand, and soil
- 24. Deepest trench in the world (near Guam)
- 26. When day and night are of equal length in both hemispheres
- 27. Uppermost layer of the earth
- 28. Imaginary line that runs north and south through Earth's center
- 29. Study of Earth in all its variety
- 30. Layer of rock that surrounds the core
Down
- 1. The time before writing was developed
- 3. Lowest point in the Earth's crust
- 4. A day with the fewest hours of sunlight
- 5. Height above sea level
- 6. Narrow body of water between two pieces of land
- 9. A year that contains extra days (every four years)
- 12. A violent and sudden movement of the earth's crust
- 14. Tallest mountain in the world
- 17. Largest land mass, there are seven of them
- 19. Melted rock
- 20. Body of land surrounded by water completely
- 23. Layer of air surrounding earth
- 25. Items made by early people (tools,pottery, weapons,etc)