Earth's Interior

Front

What is the outer core of the Earth?

Back

The outer core is a liquid layer composed mainly of iron and nickel, located beneath the mantle and above the inner core.

Front

How do P waves and S waves behave in the outer core?

Back

P waves can travel through the outer core, while S waves cannot, indicating that the outer core is liquid.

Front

What happens to temperature as you go deeper into the Earth?

Back

Temperature increases as you go deeper into the Earth due to the heat from the core and the pressure of the overlying materials.

Front

What is the composition of the mantle?

Back

The mantle is primarily made of silicate minerals, which include compounds of silicon and oxygen.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the uppermost part of the mantle.

Front

Which layer of the Earth is the thickest?

Back

The mantle is the thickest layer of the Earth, extending about 2,900 kilometers.

Front

What is the asthenosphere?

Back

The asthenosphere is a semi-fluid layer of the upper mantle that allows for the movement of tectonic plates.

Front

What is the inner core?

Back

The inner core is a solid sphere composed mainly of iron and nickel, located at the center of the Earth.

Front

What is the difference between the crust and the mantle?

Back

The crust is the thin, outermost layer of the Earth, while the mantle is a much thicker layer beneath the crust composed of silicate minerals.

Front

How does pressure change as you go deeper into the Earth?

Back

Pressure increases as you go deeper into the Earth due to the weight of the overlying materials.