Earth Structure

What happens when heat is added to a substance?

• It contracts (gets smaller), and becomes less dense.

• It expands (gets bigger), and becomes more dense.

• It expands (gets bigger), and becomes less dense.

• It contracts (gets smaller), and becomes more dense.

Tags

NGSS.MS-PS1-4

A cool fluid is ____________________ a warm fluid.

• more dense than

• the same density as

• less dense than

Which image shows a denser material?

• Image A

• Image B

• Image C

Inside Earth, what happens as you go from the surface to the core?

• pressure decreases, temperature increases

• pressure and temperature decrease

• pressure increases, temperature decreases

• pressure and temperature increase

_________________________, changes in the fluid’s density, and the force of gravity work together to set convection currents in motion.

• Evaporation of a fluid

• Freezing and melting of a solid

• Condensation of a fluid

• Heating and cooling of a fluid

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-6

Which layer is labeled #1 in the image?

• outer core

• mantle

• inner core

• crust

• lithosphere

Which layer is labeled #3 in the image?

• outer core

• mantle

• inner core

• crust

• lithosphere

Convection in this layer causes sections of the crust to move.

• outer core

• mantle

• inner core

• crust

• lithosphere

Tags

NGSS.MS-ESS2-3

The layer of Earth that is liquid iron and nickel is

• outer core

• mantle

• inner core

• crust

• lithosphere

This is a SOLID layer is made of very dense and very hot iron and nickel

• outer core

• mantle

• inner core

• crust

• lithosphere