Unit 2 Earth Science

Front

Define Crust

Back

Made of oceanic and continental crust. The least dense layer.

Front

Where does the independent variable go on a graph? Where does the dependent variable go?

Back

On the x-axis for independent variable, and on the y-axis for dependent variable.

Front

Define Convergent Boundary (Ocean-Continent)

Back

When an oceanic plate collides with a continental plate, the denser oceanic plate is forced beneath the continental plate in a process known as subduction.

Front

Define oceanic crust

Back

Made of basalt, thinner, but more dense.

Front

What is the mechanism for Continental Drift?

Back

Sea Floor Spreading.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the asthenosphere?

Back

The semi-fluid layer beneath the lithosphere that allows tectonic plates to move.

Front

Define Divergent Boundary.

Back

A tectonic boundary where two plates move away from each other, often creating new oceanic crust.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and is forced into the mantle.

Front

What is a transform boundary?

Back

A boundary where two tectonic plates slide past each other horizontally.