The thin, outermost layer of Earth is called the ________.

• mantle

• crust

• inner core

• outer core

The thickest layer of Earth that is made of rock is called the ________.

• mantle

• crust

• inner core

• outer core

The _______ core is made of melted metal.

• inner

• outer

The ________ core is like a solid metal ball.

• inner

• outer

A ________is a material that is found in nature that has never been alive.

• crust

• mineral

• texture

• mantle

Tags

NGSS.MS-PS1-1

Rocks are grouped according to how they are ________.

• melted

• formed

• used

• dug up

________rock forms when melted rock from inside the Earth cools and hardens.

• Igneous

• Sedimentary

• Metamorphic

Tags

NGSS.MS-ESS2-1

________ rock forms when sediment, or sand or tiny bits of stone, are cemented together.

• Igneous

• Sedimentary

• Metamorphic

Tags

NGSS.MS-ESS2-4

________ rock forms when other rocks are changed by heat an pressure.

• Igneous

• Sedimentary

• Metamorphic

Wind carrying sand can break down rock and make it into smaller pieces.

• true

• false

Tags

NGSS.MS-ESS2-2