Earth's Layers

Front

How many distinct layers does Earth have?

Back

4

Front

Which layer of the Earth is thought to be liquid?

Back

Outer Core

Front

Which is the hottest layer of the Earth? (It is also solid!)

Back

Inner Core

Front

What are the two different types of crust?

Back

Continental and oceanic

Front

Which type of crust is more DENSE than the other?

Back

Oceanic is more dense than continental.

Front

Which layer of the Earth is mostly solid, but flows slowly like putty?

Back

Mantle

Front

Which layer of the Earth varies in thickness depending on where you are?

Back

Crust

Front

What occurs in the mantle and causes new crust formation?

Back

Convection currents

Front

The solid inner core is thought to be made of what?

Back

Iron and nickel

Front

What describes the crust and the upper part of the mantle?

Back

Lithosphere