Earth's Layers Flashcard

Front

What is the outermost layer of the Earth?

Back

The crust.

Front

What are the two parts of the outermost layer of the Earth?

Back

Continental and oceanic crust.

Front

Which layer of the Earth is the thickest?

Back

The mantle.

Front

What layer lies beneath the mantle and surrounds the inner core?

Back

The outer core.

Front

Which layer of the Earth is solid and made mostly of iron and nickel?

Back

The inner core.

Front

What is the primary composition of the crust?

Back

The crust is primarily composed of rocks and minerals.

Front

What is the main characteristic of the mantle?

Back

The mantle is semi-solid and can flow slowly over time.

Front

What is the temperature range of the inner core?

Back

The temperature of the inner core can reach up to 5,700 degrees Celsius.

Front

How thick is the Earth's crust on average?

Back

The Earth's crust is about 5 to 70 kilometers thick.

Front

What is the state of matter of the outer core?

Back

The outer core is liquid.