Plate+Tectonics+Study+Guide

Here's what you need to know for the test:

It covers pg. 378-393


 * 1) Identify the layers of the Earth by their chemical composition.
 * 2) Know where the compositional layers are in relation to each other.
 * 3) Identify the layers of the Earth by their physical properties.
 * 4) Know where the compositional layers are in relation to each other.
 * 5) Describe a tectonic plate.
 * 6) Explain how scientists know about the structure of Earth's interior.
 * 7) List and describe the different types of crust.
 * 8) Describe Wegener's hypothesis of continental drift.
 * 9) Explain how sea-floor spreading provides a way for continents to move.
 * 10) Describe how new oceanic lithosphere forms at mid-ocean ridges.
 * 11) Explain how magnetic reversals provide evidence for sea-floor spreading.
 * 12) Describe the three types of tectonic plate boundaries.
 * 13) Know what geographical features form at the different types plate boundaries.
 * 14) Describe a subduction zone (continental-oceanic).
 * 15) Describe the three forces thought to move tectonic plates.
 * 16) Describe what causes changes in density in the asthenosphere.
 * 17) Explain how scientists measure the rate at which tectonic plates move.

Be able to identify the type of plate boundaries and crust from a diagram.