The Earth and More

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Across
  1. 1. The constant moving of the plates of the earth, as energized by convection.
  2. 7. He is famous for his hypothesis in the early 1900's, that was rejected because of lack of a reason.
  3. 9. Another word for mass.
  4. 11. The rising of heat, as applied to how the plates of the world shifts.
  5. 12. This is how you would describe two or more objects coming together.
Down
  1. 2. The theory that the plates of the Earth are moving constantly.
  2. 3. The largest rodent in the world.
  3. 4. Not a Sand Witch, but a _________.
  4. 5. 2 or more _________ plates, moving in the opposite directions.
  5. 6. 2 or more _________ plates, traveling away from each other.
  6. 8. The opposite of being pushed upwards by a force.
  7. 10. Not a cucumber, but like a cucumber.