Geology Test Review

Front

What happens to the density as you travel from the crust to core?

Back

Temperature and density both increase.

Front

Which layer of the Earth has the least density?

Back

Crust.

Front

What causes the mantle's hot material to rise, cool, and sink again?

Back

Convection.

Front

How do scientists explain the presence of fern fossils on many continents?

Back

The continents were once joined and moved apart.

Front

What is the process that breaks down rocks in cold climates by freezing and thawing?

Back

Mechanical weathering.

Front

What is the outermost layer of the Earth called?

Back

Crust.

Front

What is the layer of the Earth beneath the crust?

Back

Mantle.

Front

What is the process by which rocks are broken down by chemical reactions?

Back

Chemical weathering.

Front

What is the term for the movement of tectonic plates?

Back

Plate tectonics.

Front

What is the Earth's innermost layer called?

Back

Inner Core.