Practice Flashcard Earth's layers

Front

What happens to pressure as you travel from the center of the Earth to the surface?

Back

Pressure decreases.

Front

True or False: The Earth's thin shell of hard rock is called the crust.

Back

True.

Front

Which layer of the Earth is referred to as #1?

Back

Crust.

Front

What do geologists call the crust and uppermost mantle?

Back

Lithosphere.

Front

What layer of the Earth makes up 67% of its mass and is located between the crust and the core?

Back

Mantle.

Front

What is the outermost layer of the Earth called?

Back

Crust.

Front

What is the layer beneath the crust that is semi-solid and allows for tectonic plate movement?

Back

Asthenosphere.

Front

What is the layer of the Earth that is liquid and surrounds the inner core?

Back

Outer core.

Front

What is the solid innermost layer of the Earth called?

Back

Inner core.

Front

What is the primary composition of the Earth's crust?

Back

Silicate rocks.