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MOD: Convection Cell

Authored by Benjamin Lynch

Science

8th Grade

NGSS covered

Used 4+ times

MOD: Convection Cell
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Convection can take place in _________________.

solids only

liquids only

liquids and gases only

solids, liquids and gases

Tags

NGSS.MS-PS1-4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When air is heated, its density ___________.

increases

decreases

remains the same

Tags

NGSS.MS-PS1-4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The diagram shows a refrigerator. The cooling unit is placed at the top. The cooling unit cools the air near it. What happens to the density of the air as it cools, and how does it move?

The density of air increases. It moves down.

The density of air increases. It moves up.

The density of air decreases. It moves down.

The density of air increases. It moves up.

Tags

NGSS.MS-PS1-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the process of convection, energy is transferred _________.

because of temperature differences in a solid

because of density differences in a liquid

by the diffusion of molecules throughout a fluid

by the vibration of molecules

Tags

NGSS.MS-ESS2-6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following correctly shows the direction of convection currents in water?

A

B

C

D

Tags

NGSS.MS-ESS2-6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Some dye in a beaker of water is gently heated. Why are the streaks of dye seen in the water?

The hot dye is a better conductor than the cool water.

The hot dye is a better convector than the cool water.

The hot water is less dense than the cool water.

The hot water is denser than the cool water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Where do convection cycles happen?

core

mantle

crust

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