Earth's Layers and Composition Quiz

What percentage of Earth's total mass does the crust make up?

• 84%

• 1%

• 20%

• 50%

Which type of rock is the continental crust mainly made of?

• Basalt

• Limestone

• Granite (correct)

• Marble

How thick is the mantle of Earth?

• 44 miles

• 1,300 miles

• 3 miles

• 1,800 miles

What creates Earth's magnetic field?

• The inner core

• The crust

• The mantle

• The outer core

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

• 4,000°C

• 22°C

• 9,032°F

• 6,000°C

Tags

NGSS.MS-PS1-4

Which layer of Earth is constantly moving, but very slowly?

• Inner core

• Mantle

• Outer core

• Crust

Tags

NGSS.MS-ESS2-3

What is melted rock inside Earth called?

• Magma

• Lava

• Basalt

• Granite

Tags

NGSS.MS-ESS2-1

What is the primary metal found in the outer core?

• Nickel

• Sulfur

• Oxygen

• Iron

Why is the inner core solid despite extreme temperatures?

• Because of its metal composition

• Due to extreme pressure

• Because of cooling processes

• Due to magnetic fields

How thick is the oceanic crust?

• 70 kilometers

• 44 miles

• 8 kilometers

• 2,900 kilometers

Tags

NGSS.HS-ESS1-5