Plate Tectonics Assignment

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Across
  1. 1. hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations
  2. 4. the process by which new oceanic lithosphere
  3. 5. the solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle
  4. 7. the boundary between tectonic plates that are colliding
  5. 9. the boundary between tectonic plates that are sliding past each other horizontally
  6. 10. the study of the alignment of magnetic minerals in rock
Down
  1. 2. the solid, plastic layer of the mantle beneath the lithosphere
  2. 3. the boundary between tectonic plates that are moving away from each other
  3. 6. a long, undersea mountain chain that has a steep, narrow valley at its center
  4. 8. theory that explains how large pieces of the lithosphere