Lesson 4 Plate Tectonics

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Across
  1. 2. A boundary at which two plates move past each other horizontally
  2. 3. Two plates move away from each other
  3. 6. To explain the age and magnetic patterns of sea-floor rocks, scientists proposed a proposal
  4. 8. The continents were joined in a single large landmass
Down
  1. 1. Form when two plates collide
  2. 4. The lithosphere is divided into pieces
  3. 5. This kind of movement of material due to difference in density
  4. 7. Describes large-scale movements of Earth's lithosphere, which is made up of the crust and the rigid, upper part of the mantle