Vocabulary

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Across
  1. 3. The thin, rocky outer layer of earth.
  2. 4. When tectonic plates move toward each other.
  3. 5. convection Unqual distribution of heat within Earth that causes the thermal circulation that drives plate motion.
Down
  1. 1. When tectonic plates move in opposite directions
  2. 2. the 2,890km thick layer of earth located below the crust.
  3. 6. The rigid layer of outer Earth including the crust upper mantle.