Across
- 5. Igneous rock that forms on the surface of the Earth.
- 9. The settling of broken rock material to form sediment.
- 10. The preserved remains of living organisms.
- 11. Rock formed when temperature and/or pressure alter existing rock.
- 12. The study of rocks, their history and the processes that form and change them.
- 14. A layer of the Earth that is below the crust.
- 16. The physical, chemical and biological processes that break rocks down into smaller pieces.
- 17. Molten rock that reaches the Earth’s surface.
- 18. Rock formed from cooling magma (or lava).
- 19. Sedimentary rock formed mainly from dead organisms.
Down
- 1. Rock made by sediments being cemented together.
- 2. Sedimentary rock formed mainly from small rock particles.
- 3. A type of metamorphism where rock is altered mostly by pressure.
- 4. The extraction of valuable minerals or other geological materials from the Earth.
- 6. The removal of weathered rock particles from the site of weathering.
- 7. A naturally occurring inorganic substance that is solid and has a crystal structure.
- 8. A model geologists use to explain the endless cycle of change that rocks undergo.
- 13. Igneous rock that forms below the surface of the Earth.
- 14. Molten rock that does not reach the Earth’s surface.
- 15. Layers of sedimentary rock.