Steps of mantle convection

More dense matter is on the ​ (a)   because its molecules are ​ (b)   . This is why it is the ​most dense, and being the most dense is why it ​ (c)   to the ​ (d)   .

• bottom
• sank
• farther apart
• rose
• top
• colder
• warmer
• closer together

Tags

NGSS.MS-PS1-4

Convection happens because temperature changes density. Put the steps in order:

• Mantle near the crust cools

• Mantle is less dense

• Molecules spread out

• Mantle next to the core is heated

• Mantle rises

Tags

NGSS.MS-ESS2-3

Convection happens because temperature changes density. Put the steps in order:

• Mantle next to the core is heated

• Mantle near the crust cools

• Molecules get closer together

• Mantle is more dense

• Mantle sinks

Tags

NGSS.MS-ESS2-1

One source of Earth's heat is ____________ _________, heat that is leftover from when Earth formed.

(a)  

The other source of heat in the Earth is _____________ ____________

(a)  

Convection in the mantle happens because ​ (a)   changes ​ (b)   .

• temperature
• density
• pressure

When molecules are ​ (a)   , they ​ (b)   and take up more space.

• heated
• spread out
• cooled
• less
• rise
• sink
• get closer together

Tags

NGSS.MS-PS1-4

This makes the material ​ (a)   because now it is ​ (b)   dense than the rest of the rock around it.

• cool
• less
• rise
• sink
• more
• warm

Tags

NGSS.MS-PS1-4

After the rock ​​rises to the ​top of the mantle, near the ​ (a)   , the rock ​ (b)   .

• bottom
• crust
• core
• warms up
• cools down

Tags

NGSS.MS-ESS2-1

When molecules are ​ (a)   , they ​ (b)   and take up less space.

• heated
• get closer together
• cooled
• less
• rise
• sink
• spread out

Tags

NGSS.MS-PS1-4