The Earth and Plate Tectonics

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Across
  1. 1. The outer layer of earth
  2. 4. A boundary where two plates slide past each other, often causing earthquakes.
  3. 6. A boundary where plates move apart and new land is formed.
  4. 7. The supercontinent that existed about 200 million years ago.
  5. 8. Plates that form Earth’s land masses.
  6. 9. Plates. Plates that make up the ocean floor.
Down
  1. 1. Currents Circular movements of magma that drag the plates across Earth’s surface.
  2. 2. Theory that continents slowly move across Earth over millions of years.
  3. 3. A boundary where an oceanic and continental plate collide, destroying crust.
  4. 5. The layer beneath the crust, made of semi-molten rock called magma.
  5. 10. The central part of Earth, divided into two layers.