Convergent Boundary: A tectonic boundary where two plates are moving toward each other.
Divergent Boundary: A divergent boundary or divergent plate boundary is a linear feature that exists between two tectonic plates that are moving away from each other.
Transform Bo: Where the two plates slide against each other in a sideways motion.
Convection currents: a cycle of which heat energy in a liquid rises to the top then becomes cold and sinks.
Oceanic Crust:The relatively thin part of the earth's crust that underlies the ocean basins.
Continental Crust: The relatively thick part of the earth's crust that forms the large landmasses.