Plate Tectonics Vocabulary

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Across
  1. 3. The mineralized remains of organisms and the rock layers in which they are found.
  2. 4. The very slow, creeping motion of Earth's mantle caused by convection currents.
  3. 7. The solid, innermost layer of Earth.
  4. 10. Theory that the crust is divided into large pieces called tectonic plates that slowly move on top of the mantle.
Down
  1. 1. A fossil that is widespread, has lived over a relatively short period of time and can be used to correlate rock strata.
  2. 2. The theory that continents were once connected but have drifted apart.
  3. 5. The solid layer of Earth between the crust and the core.
  4. 6. Huge pieces of crust that slowly move on the upper part of the mantle.
  5. 8. The thin, solid, outermost layer of Earth.
  6. 9. The liquid layer that surrounds the inner core.