Earth's Layers

Front

What is the Earth's crust?

Back

The Earth's crust is the outermost layer of the Earth, located above the mantle and below the atmosphere. It is solid and relatively thin compared to other layers.

Front

What is the state of matter of the outer core?

Back

The outer core is in a liquid state, composed mainly of molten iron and nickel.

Front

How does density change as you move from the Earth's crust to the outer core?

Back

Density increases from the least dense crust to the most dense outer core.

Front

What material best represents the asthenosphere in a model?

Back

Modeling clay best represents the asthenosphere because it can flow and deform, similar to the behavior of the asthenosphere.

Front

What is the asthenosphere?

Back

The asthenosphere is a layer of the Earth located below the lithosphere, composed of dense rock that can flow slowly and moves the tectonic plates.

Front

What is the Earth's mantle?

Back

The mantle is the layer of the Earth located between the crust and the outer core, composed of solid rock that can flow slowly.

Front

What is the inner core?

Back

The inner core is the solid innermost layer of the Earth, composed mainly of iron and nickel, and is extremely hot.

Front

What is the outer core's role in Earth's magnetic field?

Back

The movement of liquid iron in the outer core generates Earth's magnetic field through the dynamo effect.

Front

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

Back

Temperature generally increases as you go deeper into the Earth, reaching extremely high temperatures in the inner core.

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.