UNIT 5 CHOICE BOARD CROSSWORD PUZZLE CLARK BOONE

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