Layers of the Earth

What are the inner and outer cores made of?

• steel

• magnesium and iron

• aluminum and nickel

• iron and nickel

Tags

NGSS.MS-PS1-1

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

In which Earth layer are most convection currents that cause seafloor spreading thought to be located??

• Lithosphere

• outer core

• Asthenosphere

• crust

In which Earth layer are most convection currents that cause seafloor spreading thought to be located??

• inner core

• outer core

• mantle

• crust

Tectonic plates are part of this layer?

• Lithosphere

• Mesosphere

• Asthenosphere

• crust

Tectonic plates move or float on this layer?

• Lithosphere

• Mesosphere

• Asthenosphere

• crust

Tags

NGSS.MS-ESS2-3

Tectonic plates move or float on this layer?

• mantle

• core

• crust

Tags

NGSS.MS-ESS2-3

What happens to temperature as we move from the crust to the inner core?

• It decreases (gets colder)

• It increases (gets hotter)

• Nothing

Tags

NGSS.HS-ESS2-3

Which layer of Earth has the GREATEST/MOST density?

• mantle
• outer core
• inner core