FILL ME UP

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Across
  1. 3. The cycle of heating, rising cooling, and sinking is a ____ current.
  2. 4. Continental plates move on the plastic like layer of the Earth's surface called the _____
  3. 6. Sections of Earth's crust and part of the upper mantle are called _____
  4. 7. All continents once might have been connected in a large landmass called _____
  5. 8. The hypothesis that continents move slowly is called continental ______
  6. 9. The theory that Earth's crust and upper mantle are in sections that move is called plate _____
Down
  1. 1. Below Earth's crust is ______
  2. 2. The crust and part of the upper mantle are known as the _______
  3. 5. Hot magma forced upward at mid-ocean ridges produces seafloor ____