Earth Layer

The layers of Earth from inside to out are

• Core, Crust, Mantle
• Core, Mantle, Crust
• Crust, Mantle, Core
• Mantle, Core, Crust

What is true about the crust?

• The crust is less than 1% of Earth's mass
• There are two types of crust; continental and oceanic
• It is the outermost layer
• All of the above is true

The lithosphere is the lower part of the mantle.

• True
• False

Which of these statements is not true about the mantle?

• The mantle is extremely hot
• It is about 68% of the Earth's mass
• The entire mantle can be divided into two parts; the lithosphere and the asthenosphere
• It is made of ultramafic rock

This layer is made up of both crust and uppermost mantle.

• Inner core
• Mesosphere
• Lithosphere
• Asthenosphere

The inner core is made mostly of

• silicate minerals

• Magnesium

• Iron

• Nickel

The core is 

• Felsic
• Mafic
• Ultramafic
• Metallic

Which layer of the earth is molten and moves slowly?

• Lithosphere
• Asthenosphere
• Outer Core
• Inner Core

What is the thinnest layer of the Earth?

• Outer core
• Mantle
• Crust 
• Inner Core

The ___ is the layer of Earth that is made of solid, brittle rock

• Asthenosphere
• Lithosphere
• Core
• Mantle