Unit 5 Earths Systems Vocab Part 1

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Across
  1. 2. Something melted due to extreme heat, like lava from a volcano.
  2. 4. The solid, super-hot center of the Earth, made mostly of iron and nickel.
  3. 6. A large piece of Earths crust that carries land (continents). These plates move very slowly.
  4. 10. The part of Earths crust that forms land. It is thicker but lighter than oceanic crust.
  5. 11. The thickest layer of Earth, between the crust and core.
  6. 13. A deep valley in the ocean floor, formed when one plate sinks under another. The Mariana Trench is the deepest one.
  7. 15. The invisible force around Earth that protects us from the Sun's Radiation.
  8. 16. A place where two plates push together. It can form mountains or volcanoes, like the Andes.
  9. 19. A place where two tectonic plates move apart. It can create new ocean floor, like in the Mid-Atlantic Ridge.
Down
  1. 1. The crust under the ocean, thinner but heavier than continental crust.
  2. 3. A tectonic plate under the ocean. Its thinner but denser than a continental plate.
  3. 5. The edges where tectonic plates meet. This is where earthquakes and volcanoes often happen.
  4. 7. A huge piece of the lithosphere that moves on the asthenosphere. Their movement causes earthquakes and volcanoes.
  5. 8. A place where two plates slide past each other, causing earthquakes, like the San Andreas Fault in California.
  6. 9. The thin, outermost layer of Earth where we live.
  7. 12. The rigid outer layer of the Earth, made of the crust and upper mantle.
  8. 14. The soft, flowing layer of the mantle below the lithosphere.
  9. 17. The liquid layer around the inner core, also made of iron and nickel. It creates Earths magnetic field.
  10. 18. A place where magma rises from deep inside Earth, forming volcanoes. Hawaii was created by a hot spot!