TSA Science 7 - Randolph - Convection Currents

Match the correct term with each definition.

• must be added to a system to cause movement of a fluid

• energy

• layer of Earth where convection currents cause tectonic plates to move

• mantle

• process in which the ground heats the air

• conduction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Match the correct term with each definition.

• when heat energy transfers between two parts of a fluid with different temperatures

• gravity

• process in which the Sun heats the ground

• radiation

• force that pulls denser, cooler fluids toward Earth

• convection current

Tags

NGSS.MS-PS2-4

What is the driving force of currents in the oceans and atmosphere?

• equal heating of Earth by the Sun

• solar radiation heating only the land surfaces

• solar radiation heating only the oceans

• unequal heating of Earth by the Sun

Tags

NGSS.MS-ESS2-6

Which of these descriptions properly describes heat flow in the oceans and atmosphere?

• Cool flows down, and warm flows up.

• Cool flows up, and warm flows down.

• Cool flows up, and warm flows up.

• Cool flows down, and warm flows down.

Tags

NGSS.MS-ESS2-6

Convection currents in Earth’s mantle are caused by _____.

• less dense, hot magma moving downward

• less dense, hot magma moving upward

• tectonic plate movement

• more dense, cooler magma moving upward

Tags

NGSS.MS-PS1-4

Wind is created when _____.

• warm air moves in to replace cool air

• dry air moves in to replace moist air

• cool air moves in to replace warm air

• both air masses are the same temperature

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Two students disagree on what images A and B are showing. Here is what they said:

Raj: Cool air from the ocean is blowing onto land in image A.

Diane: In figure B, there is a high-pressure system on land and a low-pressure system at sea.

Which student is correct?

• Raj

• Diane

• neither student

• both students

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Two students disagree on what images A and B are showing. Here is what they said:

Raj: Cool air from the ocean is blowing onto land in image A.

Diane: In figure B, there is a high-pressure system on land and a low-pressure system at sea.

Which describe a sea breeze best?

• Warm air from the ocean blows onto land.

• It usually occurs as the land cools in the evening.

• Cool air from the ocean blows onto land.

• Air moves from low pressure to high pressure.

Tags

NGSS.MS-ESS2-5

You are hiking with some friends during the daytime. You begin to walk up a mountainside from the valley floor. As you walk up the mountain, a strong wind blows at your back. What is causing this to happen? How is this related to convection currents?

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Your teacher places of beaker of water onto a hot plate. He then adds rice to the beaker. The rice swirls around in the hot water. How does this demonstrate convection currents? How do you predict the rice will move?

Tags

NGSS.MS-ESS2-6