Q1 Review Crossword

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Across
  1. 6. This is the number of physical layers that the Earth has.
  2. 7. Mountains are found at this type of boundary.
  3. 8. The supercontinent that existed millions of years ago.
  4. 9. This part of the core is a solid metal.
  5. 10. Earthquakes occur at these boundary types.
Down
  1. 1. These types of currents cause the continents to drift.
  2. 2. Synonymous with tectonic plates.
  3. 3. Which layer of the earth is said to be "plastic"?
  4. 4. this part of the core is a hot liquid.
  5. 5. Plates move apart at these boundary types.