Earth's Interior

The Earth has ______ basic layers.

Convection in the mantle is important for _________________.

The outer core is a _______ of molten metal.

Scientists have learned about the Earth's layers by studying the _____ produced by earthquakes.

Most of the Earth's crust is made up of _______ rock.

How deep can humans go into the Earth's interior?

Each of Earth's layers have a ____________ composition

The thick, middle later below the crust is called the _________.

The temperature and pressure ____________ as you go deeper into the Earth.

The crust and the uppermost mantle form the brittle outer later of Earth called the _________

The thin, rocky, outer layer of the Earth is called the ___________.

The dense metallic center of Earth is called the __________.

Thermal (heat) energy in the Earth's outer core and mantle escapes toward the surface by ______

The three major layers of the Earth's interior have different compositions and different _____.

The 'plastic' but still mostly solid layer of the mantle is called the ____________________.