Across
- 7. This plate is light less dense thicker and made of granite
- 10. This plate is heavier more dense thinner and made of basalt
- 12. Plates move away from each other
- 14. This is the day when direct sunlight reaches its greatest distance north or south of the equator
- 15. This theory states Earth's crust is broken into plates which float around & move
- 17. Caused by the revolution of the moon
- 21. This is when the Sun is directly above Earth's equator and daylight hours are nearly equal all over Earth
- 22. On top of the Earth
- 23. Formed when sediments are compacted and cemented together
- 26. Occurs when the Earth moves directly between the Sun and the Moon the Earth's shadow falls on the Moon
- 27. Rocks and other natural materials which have been broken into smaller pieces
- 28. Solid thin outermost layer of Earth
- 29. Removal of rock particles by wind water ice or gravity
- 30. Earth spins on its axis causing night and day
Down
- 1. Plates slide past each other
- 2. A time of year marked by a change in weather ecology and amount of daylight
- 3. This type of tide occurs when the Earth Sun and Moon are in a straight line (new moon and full moon phases)
- 4. Rock that forms when heat pressure or chemicals act on a rock and change its form or composition
- 5. This type of tide occurs when the Sun Earth and Moon are at a right angle (1st and 3rd quarter phases)
- 6. Inside the Earth
- 8. Formed when magma or lava cools and hardens
- 9. Earth's yearly orbit around the Sun
- 11. Part of the Earth that is made of dense material like iron and nickel
- 13. The ______________ of Earth's axis causes seasons
- 16. The regular rise and fall of ocean water levels
- 18. In the ______________ the Northern Hemisphere is tilted towards the Sun
- 19. The Sun is lower in the sky during this season
- 20. Plates move toward each other
- 24. This process breaks down rocks into smaller pieces
- 25. Occurs when the moon moves directly in between the Earth and Sun and casts its shadow on the Earth