Unit 7A: Plate Tectonics (Chapter 9)

The theory that earth's surface is made of rock plates that move

Happens when two plate separate

Active volcanoes are most likely to form at ____.

Which layer of Earth is composed of roughly 30 tectonic plates

The theory that states continents separated because they are in slow,constant motion is 

The ancient super continent composed of land that forms todays continents

He stated that the Earth appeared as if it was once connected had drifted apart over time. 

Wegener noticed that which two continents fit together like a jigsaw puzzle?

Convection currents are located in which part of the Earth's interior?

Which of the following is not a clue Wegener used to support his theory of continental drift?

Which part of the Earth is responsible for its magnetic fields?

The ____ is example of a transform boundary

The cycle of heating, rising, cooling, and sinking in the Mantle is a

What is the only liquid layer of the Earth called?

The rigid plates composed of the crust and part of the upper mantle are called the ...

The process of new oceanic crust forms at a mid ocean ridge as old oceanic crust moves away

What are formed when two continental plates collide.

Trenches are most likely formed at 

Earthquakes are most commonly found along

The mountain ranges formed by divergent plates spreading

Happens when two plate collide

Happens when two plates slide past one another