Chapter 9 Earth's Changing Surface Lessons 1, 2 and 3 (5)
Across
- 3. This type of crust lies beneath the ocean floor.
- 5. this is a section of the lithosphere.
- 9. these are cracks in the crust where surrounding rock has moved or shifted.
- 10. The edges of plates are called _____.
- 16. these are made when the crust folds, tilts, and lifts as the plates meet.
- 18. these types of forces and processes build new features on Earth's surface.
- 19. This rock or stone weathers more quickly than granite.
- 22. this type of weathering is the breaking of rock into smaller pieces by force.
- 23. Rift Valleys between spreading plates can be seen at the bottom of the ocean and in this country.
- 24. This type of weathering is the changing of materials in a rock by a chemical process.
- 25. This is the place of Earth's surface above the focus.
- 26. Oceanic Crust is made mostly of this dark green rock.
- 27. The top of the main vent of a volcano.
Down
- 1. this is the place where the plates start to slip.
- 2. Most of these form near colliding plate boundaries.
- 4. This is the layer that makes up most of the Earth's material.
- 6. Earth's outermost and thinnest layer.
- 7. this is at the very center of the Earth and is made mostly of iron.
- 8. A volcanic _____ forms when a volcano reaches the surface of the water.
- 11. This is the top part of the mantle and the crust above it.
- 12. This is nearly solid rock that lies under the surface.
- 13. Studying vibrations from ____ is another way scientist can study the Earth's Layers.
- 14. This type of plate boundary forms when plates move apart from each other.
- 15. This is where the crust is the thickest.
- 17. At this type of plate boundary two plates move past each other in opposite directions,
- 20. This is the second layer of soil.
- 21. This is the liquid portion of the core.