Layers of the Earth

Front

Layer 2 is the Earth's _____________.

Back

Outer Core

Front

Which layer of the Earth should be the thinnest in a model?

Back

the layer representing the crust

Front

The outermost solid layer of the Earth is called the _____________.

Back

crust

Front

The solid, dense center of our planet is called the _____________.

Back

inner core

Front

Which layer of the Earth is the only liquid layer?

Back

Outer Core

Front

What is the layer between the crust and the outer core called?

Back

Mantle

Front

What is the temperature of the inner core?

Back

Approximately 5,500 degrees Celsius (9,932 degrees Fahrenheit)

Front

What is the primary composition of the outer core?

Back

Liquid iron and nickel

Front

What is the thickness of the Earth's crust?

Back

About 5 to 70 kilometers (3 to 43 miles) depending on location

Front

What is the main characteristic of the mantle?

Back

It is semi-solid and can flow slowly.