Layers of the Earth

Layers of the Earth

Open Ended

Why do you think the author chose to include a diagram in the article?

Multiple Choice

Beneath the ocean, about how thick is Earth's crust on average?

• 1 km (less than a mile deep)

• 5 km (3 miles deep)

• 100 km (62 miles deep)

• We have no idea.

Multiple Choice

How does the temperature change as you move away from Earth's center?

• It gets hotter.

• It gets cooler.

• It doesn't change.

Multiple Choice

What is the main difference between the materials in the inner and outer core?

• There is no difference.

• The materials in the inner core are liquid, the materials in the outer core are solid.

• The materials in the inner core are solid, the materials in the outer core are liquid.

Open Ended

How many years ago did Earth form?