Earth's Layers, Rocks and Minerals

What is the outermost layer of the Earth?

• crust
• mantle
• outer core
• inner core

What layer of the mantle is flexible like plastic?

• lithosphere
• asthenosphere
• lower mantle

What layer of the mantle breaks into plates and is like the crust?

• lithosphere
• asthenosphere
• lower mantle

Which part of the core is liquid metal?

• outer core
• inner core

What two metals make up the core?

• aluminum and silver
• iron and nickel

True or False. The mantle is hotter than the crust.

• True
• False

Which layer is thinnest?

• crust

• mantle

• outer core

• inner core

Which layer is plastic-like and allows the crust to flow over it?

• lithosphere

• outer core

• asthenosphere

• inner core

A _______ is a solid, naturally formed substance that always has the same composition.

• rock
• carbon
• mineral
• water

Tags

NGSS.MS-PS1-1

___________ rocks are formed when magma cools.

• Sedimentry
• Igneous
• Metamorphic
• Mineral

Tags

NGSS.MS-ESS2-1