Earth Interior 24-25 (A)

Front

What is the Earth's inner core?

Back

A dense hot ball of solid iron and nickel.

Front

Which layer of Earth has the greatest density?

Back

Inner core.

Front

What is true about the inner core layer of Earth?

Back

The inner core is the hottest layer of Earth.

Front

What causes Earth's magnetic field?

Back

Movements in the outer core.

Front

Why is Earth's magnetic field important?

Back

It prevents our atmosphere from being blown off by solar winds and allows compasses to work.

Front

What is the composition of the Earth's inner core?

Back

Solid iron and nickel.

Front

What is the state of matter of the Earth's inner core?

Back

Solid.

Front

What is the temperature range of the Earth's inner core?

Back

Approximately 4,000 to 5,000 degrees Celsius.

Front

What is the outer core primarily made of?

Back

Liquid iron and nickel.

Front

How does the outer core contribute to Earth's magnetic field?

Back

The movement of liquid iron generates electric currents, which produce magnetic fields.