Layers of the Earth

Which layer of Earth has the GREATEST density?

• crust
• mantle
• outer core
• inner core

What is the driving force to plate tectonics occurring when warm magma rises and cooler magma sinks? 

• An oceanic current
• A conventional current
• A convection current
• A magnetic current

Tags

NGSS.MS-ESS2-3

The thinnest layer of the Earth is the ___________.

• mantle
• crust
• core

Tectonic plates are made up of continental crust and ________ crust.

• continental
• oceanic
• plates
• mantle

There are how many different types of crust?

• 1
• 2
• 5
• 3

What is the thickest layer of the Earth?

• the crust
• the mantle
• the outer core
• the inner core

What is the core made of?

• steel
• iron 
• aluminum
• iron and nickel

Tags

NGSS.MS-PS1-1

What describes the outer core?

• solid
• liquid
• viscous
• gas

Tags

NGSS.MS-PS1-4

Why is the inner core solid?

• its unknown
• what it's made of
• the pressure
• it is colder than the outer core

Tags

NGSS.MS-PS1-4

Which layer of the Earth is the only liquid layer?

• Outer Core
• Inner Core
• Mantle
• Lithosphere