Across
- 3. Causes sea floor spreading.
- 5. Solid, coolest layer of the Earth.
- 7. Using what we need as efficiently as possible. “Reduce, Reuse, Recycle”.
- 11. New crust is generated as two plates DRIFT APART from each other as magma flows to the surface and hardens.
- 14. The theory of how the Earth’s crust behaves, how earthquakes and volcanoes occur, and how mountain ranges form.
- 15. When two continental plates collide forming mountain ranges.
- 17. Solid material that is transported and deposited in a new location; consists of rocks and minerals, PLUS the remains of plants and animals.
- 20. A place to dispose of trash and other waste material by burying it and covering it over with soil.
- 23. Resources that exist in limited amounts or are used faster than they can be replaced by nature.
- 24. The transportation of weathered rocks and soil by natural forces (wind, water, ice, and gravity). The process that moves sediment from one place to another.
- 25. Composed mainly of iron and iron-nickel alloy. Source of the Earth’s internal heat.
- 26. The study of all ancient life.
- 27. The ocean plate sinks below the continent into the mantle becoming hot and soft; causes earthquakes and volcanoes.
- 28. Convert (waste) into new materials and objects (different objects).
- 30. Using an object again for the same purpose or another purpose w/out changing it significantly.
- 31. Crust breaks as two plates SLIDE past each other; usually results in frequent earthquakes.
- 32. The study of the physical features and history of the Earth; tries to put rocks into a larger context.
- 33. Formed by cooling magma at or near Earth’s surface; made of crystals locked together.
Down
- 1. Formed by adding heat and pressure to other rocks. Usually shows “stretched out” crystals, stripes, or smooth areas.
- 2. Crust is destroyed when one plate dives under another as two plates COLLIDE.
- 4. The process of breaking rocks and other parts of the geosphere into smaller pieces.
- 5. Causes rifts (uneven breaks) in land that can eventually fill with water or become new ocean basins.
- 6. Resources that can be replaced, usually within a person’s lifetime.
- 8. Evidence of ancient life
- 9. Behaves like a solid or a plastic. Source of magma for volcanic eruptions.
- 10. Formed by the weathering of rock into sediments that are transported to a new location and cemented together.
- 12. The theory that says our continents have not always been where they are now developed by Alfred Wegner.
- 13. The laying down of sediment carried by wind, water, or ice that can add to or create new landforms.
- 16. Brittle, top-most part of the mantle PLUS Earth’s crust.
- 18. A useful material from the Earth that can be drawn from when needed.
- 19. Moving rivers of ice that carve valleys by erosion as they pick up and push along weathered rocks as they slowly move.
- 21. To make something smaller or use less, resulting in a smaller amount of waste.
- 22. The study of rocks, how they form, and how they are used; a type of geology.
- 29. A mixture that consists largely of decayed organic matter and is used for fertilizing and conditioning land.