Tectonic Plates

When oceanic crust sinks beneath a deep-ocean trench and back into the mantle.

What is the theory that pieces of Earth's lithosphere are in slow, constant motion?

What forms when continental plates pull apart at a divergent plate boundary on land?

Two plates moving away from each other is called a ...

The place where two plates slip past each other in opposite directions is called a ...

Molten material rising from the mantle and erupting along mid-ocean ridges is called...

What forms where two plates move apart?

Mountains form at a __________________ convergent boundary. 

Two divergent plate boundaries under the ocean form a...

Oceanic crust near the mid-ocean ridge is...

What causes Earth's plates to move?

Subduction occurs where the oceanic crust bends down toward the mantle at a(n)

Where are the longest mountain ranges on Earth found?

Who's Theory of Plate tectonics was supported by landforms, fossils, and climate?

What is a break in Earth's crust along which rocks move?

What process continually adds new crust to the ocean floor on both sides of a mid-ocean ridge?

What forms if a continental and oceanic plate collide and the oceanic crust bends downward?

A plate boundary where two plates move toward each other is called a _________ boundary. 

What technology did scientists use in the mid-1900s to map the mid-ocean ridge?

The lithosphere is broken into sections called ______________.