Across
- 2. A rock that forms from compressed or cemented layers of sediment
- 4. When one plate slips under the other due to differences in their density
- 9. Rock that has been changed by heat and pressure
- 11. A physical feature on Earth's surface (ex: mountains or canyons)
- 13. Sections of the crust located under the oceans and seas... usually younger than other sections of crust, and made mostly of basalt
- 14. Boundary that occurs where plates slide PAST each other... causes earthquakes
- 18. Process in which eroded material (sediment) is laid down in new locations
- 22. The layer of hot, semi-solid material between Earth's crust and core.
- 23. Not formed from living things or the remains of living things
- 24. Molten rock beneath the earth's surface
- 26. The layer of rock that forms Earth's outer surface.
- 27. A type of fuel that forms from the ancient remains of decomposed plants and animals (2 words)
- 29. Boundary that occurs where two plates slide TOWARD each other... forms mountains and volcanoes
- 31. A German scientist who proposed the theory of continental drift (2 words)
- 34. The color of a mineral in powdered form... found by rubbing the mineral on an unglazed porcelain plate
- 35. The formation of new crust at an ocean-ocean divergent boundary, as a result of magma pushing upward and outward from Earth's mantle to the surface (2 words)
Down
- 1. The location where two tectonic plates meet. (2 words)
- 3. Sections of the crust that form landmasses... tend to be older than other sections of the crust, and made mostly of granite
- 5. Igneous rock that forms when magma rises up and cools in a place underground (2 words)
- 6. Processes by which rock, sand, and soil are broken down and carried away due to weathering
- 7. The process of rock being broken down by abrasion (ex: different types of weather, moving air, water, sand, glaciers, ice formation, etc.) (2 words)
- 8. A dense sphere of solid iron and nickel at the center of Earth (2 words)
- 10. A scale ranking minerals from 1 (softest) to 10 (hardest) (3 words)
- 12. The process that breaks down or dissolves rock through chemical reactions (ex: acid in geothermal areas, oxidation, etc.) (2 words)
- 15. The process in which rocks are created, changed, destroyed, and formed again (2 words)
- 16. A naturally occurring, inorganic solid that has a definite chemical composition and an orderly arrangement of atoms
- 17. When weight from layers of sediment forces out fluids and air, decreasing the space between sediments
- 19. Rock that forms when magma cools above the surface of Earth, usually as a result of a volcano... sometimes has holes from escaping gas (2 words)
- 20. The gradual movement of the continents across the earth's surface (2 words)
- 21. Magma that reaches Earth's surface
- 25. Sections of the Earth's crust that move due to convection currents. (2 words)
- 28. A layer of molten iron and nickel that surrounds the inner core of Earth (2 words)
- 30. Boundary that occurs where two plates slide AWAY from each other... forms valleys and sea-floor spreading
- 32. The way a mineral reflects light
- 33. The hardest known mineral