Dalton Bardwell 3 - Crossword Puzzle

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Across
  1. 4. the boundary that moves away from each other.
  2. 6. the very center of the earth.
  3. 7. when one plate goes under the other.
  4. 8. the liquid that comes out of a volcano.
Down
  1. 1. the layer of the earth that is only liquid.
  2. 2. the liquid that is in the volcano.
  3. 3. plates the things in the earth that causes the movement of continents.
  4. 5. the different types of movement of plates.