Plate Motion

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Across
  1. 4. The plate motion may dictate or be dictated by the pattern of mantle convection.
  2. 5. Earht's outer shell is broken into tectonic plates that move relative to one another.
  3. 6. The very slow creep of Earth's solid silicate mantle as convection but carry heat from the interior to the planet's surface.
  4. 7. When two tectonic plates move away from each other.
  5. 10. This occurs when plates move toward each other and collide.
Down
  1. 1. The earth's outer crust is composed by tectonic plates that move on a hot flowing mantle layer called asthenosphere.
  2. 2. They occur where plates are sub-ducting, spreading, slipping, or colliding.
  3. 3. The New ocean floor is created as the Earth's tectonic plates spread apart.
  4. 8. Earth's land masses move towards and away from each other at an average blank.
  5. 9. The long narrow depressions on the seafloor that would form at the boundary of tectonic plates where one plate is pushed or sub-ducts beneath another.