Earth Layers Flashcard

Front

What is the thinnest layer of the Earth?

Back

The crust.

Front

Why is the inner core solid while the outer core is liquid?

Back

It is affected by pressure from the layers above it.

Tags

NGSS.HS-ESS2-3

Front

Which layer of the Earth makes up 70% of the Earth’s mass?

Back

The mantle.

Front

What is the thickest layer of the Earth?

Back

The mantle.

Front

Why does the continental crust float on top of the mantle?

Back

Because the crust is less dense than the mantle.

Front

What are the four main layers of the Earth?

Back

Crust, mantle, outer core, inner core.

Front

What is the composition of the inner core?

Back

It is primarily made of iron and nickel.

Front

What is the state of matter of the outer core?

Back

Liquid.

Front

How does the density of the crust compare to the mantle?

Back

The crust is less dense than the mantle.

Front

What is the primary characteristic of the mantle?

Back

It is solid but can flow slowly over time.