Layers of Earth Flashcard

Front

What is the lithosphere?

Back

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

Front

Which layer of the Earth is completely solid?

Back

The inner core is the only layer of the Earth that is completely solid.

Front

What is the composition of the inner core?

Back

The inner core is made mostly of iron and nickel, making it a dense layer.

Front

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

Back

As depth increases into the center of the Earth, the temperature increases.

Front

What layer contains most of Earth's mass?

Back

The mantle contains most of Earth's mass.

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 outer core?

Back

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

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid due to immense pressure, while the outer core is liquid.

Front

What is the crust?

Back

The crust is the thin, outermost layer of the Earth, where we live, and is composed of solid rock.

Front

What is the mesosphere?

Back

The mesosphere is the lower part of the mantle, located below the asthenosphere, and is solid but can flow slowly.