Plate Tectonics

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Across
  1. 4. Cracks in the earth’s crust along which there is movement.
  2. 7. Currents- Drive the movement of Earth’s rigid tectonic plates in the planet’s fluid molten mantle.
  3. 8. tectonics The theory that Earth’s outer shell is divided into large slabs of solid rock called plates that glide over the mantle.
  4. 9. Places where plates slide sideways past each other.
Down
  1. 1. A boundary that is a linear feature that exists between two tectonic plates moving away from each other.
  2. 2. An area on Earth where two or more plates collide. Eventually one slides beneath the other in a process known as subduction.
  3. 3. The upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
  4. 5. The rigid outer part of the earth, consisting of the crust and upper mantle.
  5. 6. long narrow depressions on the sea floor that form at the boundary of tectonic plates where one plate is pushed beneath another.