The Land- Vocabulary

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Across
  1. 4. the outside layer of the earth and is made of solid rock, mostly basalt and granite
  2. 5. the breaking down or dissolving of rocks and minerals on the surface of Earth
  3. 7. a vent in the crust of the earth or another planet or a moon from which usually molten or hot rock and steam issue
  4. 9. molten rock that is underground
  5. 11. a large continuous mass of land conventionally regarded as a collective region
  6. 13. features on the Earth's surface that make up the terrain
  7. 14. the ancient supercontinent, comprising all the present continents joined together, which began to break up about 200 million years ago
  8. 16. Andreas ridge a continental right-lateral strike-slip transform fault that extends roughly 1,200 kilometers (750 mi) through the U.S. state of California
  9. 17. a hypothetical landmass in the Northern Hemisphere near the end of the Paleozoic Era
  10. 18. tetonics a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere.
  11. 19. volcanoes that have not erupted in a long time but are expected to erupt again in the future
Down
  1. 1. a layer within the Earth between the crust and the core
  2. 2. wegener German meteorologist and geophysicist who formulated the first complete statement of the continental drift hypothesis
  3. 3. the geological process in which earthen materials are worn away and transported by natural forces such as wind or water
  4. 6. the sudden release of strain energy in the Earth's crust, resulting in waves of shaking that radiate outwards from the earthquake source
  5. 8. core the liquid layer of the Earth's core, located between the inner core and the mantle
  6. 10. a hypothetical landmass in the Southern Hemisphere that separated toward the end of the Paleozoic Era to form South America, Africa, Antarctica, and Australia
  7. 12. core the innermost layer of the Earth
  8. 13. a hot or cold mixture of water and rock fragments that flow quickly down the slopes of a volcano
  9. 14. boundaries The point where two or more plates meet
  10. 15. ocean ridges a seafloor mountain system formed by plate tectonics