Plate Tectonics Review Crossword

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Across
  1. 3. Boundary, Boundary where two plates move away from each other.
  2. 4. Tectonics, The theory that Earth's crust is broken into plates that move because of convection currents in the mantle.
  3. 5. Current, Current caused by rising heated (less dense) material and sinking cooled (denser) material in the mantle.
  4. 8. Boundary, Boundary where two plates collide.
  5. 9. Process where an oceanic plate sinks beneath another plate, often forming volcanoes.
  6. 10. Ridge, Underwater chain of mountains formed at divergent plate boundaries.
Down
  1. 1. Boundary, Plate boundary where two plates slide past each other horizontally.
  2. 2. Spreading, Process where new oceanic crust forms as magma rises and hardens at mid-ocean ridges.
  3. 6. Sudden shaking of Earth's surface often produced when plates move past or collide.
  4. 7. Landform created when two continental plates collide.