Layers+of+the+Earth+&+the+Theory+of+Plate+Tectonics


 * 1) Discuss the layered structure of the Earth and the movement of the mantle
 * 2) Identify what is meant by the phrase convection currents.
 * 3) Identify what is meant by gravitational forces
 * 4) Relate movements of Earth’s plates to convection currents in the mantle and to gravitational forces
 * 5) Identify what is meant by the phrase “scientific theory”.
 * 6) Explain how a hypothesis can become a scientific theory.
 * 7) Explain the theory of “Plate Tectonics”
 * 8) Discuss how the validity of the theory of plate tectonics has been tested.
 * 9) Discuss evidence that suggests crustal plates move over time (eg. shape of continents, fossil and rock distribution patterns, remote/satellite imaging, distribution of earthquakes, volcanoes deep ocean trenches and mountains)
 * 10) Describe the 3 types of plate boundaries:
 * moving apart “Ridge”
 * colliding “Trench”
 * siding sideways “Fault”
 * 1) Explain how earthquakes occur, volcanoes occur and new landforms (eg. mountains and islands made from igneous rock)