Plate Tectonics

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Across
  1. 3. boundaries where two tectonic plates slide horizontally past each other.
  2. 4. preserved remains or traces of once living organisms older than 10,000 years.
  3. 6. spreading a process where tectonic plates pull apart at divergent boundaries beneath the ocean.
  4. 8. core outside of the inner core
  5. 10. boundaries where two tectonic plates move apart from each other.
  6. 12. boundaries where tectonic plates crash into each other.
  7. 13. Earth's thinnest outermost layer/apart of the lithosphere
  8. 14. gravitational force that causes a cold,dense tectonic plates to sink into the mantle at a subduction zone.
  9. 15. core the center most part/apart of the lithosphere
  10. 16. supercontinent that joined almost all of Earth's land masses into a single gigantic piece of land.
Down
  1. 1. massive rigid slabs of solid rock that make up Earth's outermost layer.
  2. 2. convergent plate boundaries where one plate slides beneath another.
  3. 5. drift where Earth's continents move positions over time.
  4. 7. slow-flowing movement drives plate tectonics.
  5. 9. rehearsals oceanic crust records the Earth's shifting magnetic field.
  6. 11. end of the outer core