Earth's Interior

Front

What causes convection currents in the Earth's mantle?

Back

A temperature difference in the mantle, resulting in movement from hot areas to cooler ones.

Front

In which layer of the Earth do convection currents occur?

Back

Mantle

Front

What provides direct evidence of the Earth's interior?

Back

Examining rock samples from drilling or volcanic eruptions.

Front

What type of evidence do seismic waves provide about the Earth's interior?

Back

Indirect evidence that shows where rock composition and form changes.

Front

What is the composition of the Continental Crust?

Back

Lighter colored, coarse grained rocks, usually referred to as 'dry land'.

Front

What is the primary layer of the Earth that is solid and composed mainly of silicate rocks?

Back

Crust

Front

What is the outer layer of the Earth called?

Back

Crust

Front

What is the layer beneath the Earth's crust?

Back

Mantle

Front

What is the innermost layer of the Earth?

Back

Inner Core

Front

What is the layer surrounding the inner core?

Back

Outer Core