Unit 7A: Plate Tectonics (Chapter 9)

Earthquakes are most commonly found along

Happens when two plate separate

Which layer of Earth is composed of roughly 30 tectonic plates

Happens when two plate collide

The mountain ranges formed by divergent plates spreading

The ancient super continent composed of land that forms todays continents

Happens when two plates slide past one another

What is the only liquid layer of the Earth called?

What are formed when two continental plates collide.

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

The ____ is example of a transform boundary

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

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

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

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

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

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

Active volcanoes are most likely to form at ____.

Trenches are most likely formed at 

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

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

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