Many rigid, but moving pieces the Earth's surface are called...

What is the theory dealing with the formation and movement of the plates that cover the Earth's surface?

Which layer of Earth is made up of the broken pieces of the Earth's crust?

What is the semi-solid layer, found under the lithosphere, that moves due to plasticity?

What is the theory that states that all continents are just fragments of Pangaea that are now drifting apart?

What explains the outward movement of the ocean floor at diverging boundaries that causes new rock to form?

What type of boundary causes two crustal plates to slide past one another?

What type of boundary causes two plates to move away from each other?

What type of boundary causes two plates to move toward each other?

What is it called when one plate sinks below another less dense plate?

What is the name of the supercontinent that existed before the plates drifted apart creating the continents we have today?