The transfer of thermal energy from one particle of matter to another

The movement of a fluid, caused by differences in temperatures

a deep valley across the ocean floor

A plate boundary where two plates move past each other in opposite direction

a undersea mountain chain where new ocean floor is produced

The process by which oceanic crust the deep-ocean trenches and back into the mantle at a convergent plate boundary

The Theory That pieces of Earth's Lithosphere are in constant motion, driven by convection currents in the mantle

a plate boundary where to plates move away from each other

The process by which molten material adds new oceanic crust to the ocean floor

A section of the lithosphere that slowly moves over the asthenosphere carrying pieces of continental and oceanic crust

a plate boundary where two plates move toward each other

a break in the Earth's crust along in which the rocks move

A deep valley that forms where two plates move apart

The measurement of how much mass of a substance is contained in a given volume