Unit 7 Convection Currents Class Review

If differences in air pressure produce winds, what can you conclude about temperature and air pressure based on the figure?

• As warm air rises, it creates an area of lower pressure, and cooler air flows in as wind
• Warm air is denser than cold air is, creating an area of high pressure the produces wind.
• Winds flow from areas of low pressure to areas high pressure when temperature is warmer
• Air pressure decreases at night because temperature is lower, producing land and sea breezes

Tags

NGSS.MS-ESS2-5

Heat transfer by convection is caused by differences in what two things:

• Thickness and material

• Weight and electricity

• Temperature and density

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NGSS.MS-ESS2-6

What is one role of the ocean in convection?

• to provide a home for animals
• to absorb & release heat
• To surf on
• To drink from

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NGSS.MS-ESS2-6

Which one heats and cools fastest?

• land
• sea
• both are the same rate
• air

Tags

NGSS.MS-ESS2-6

Analyze the map.
Why is it colder in San Diego than it is in Charleston even though they are the same distance from the Equator?

• San Diego is affected by the Gulf Stream
• Charleston is affected by the California current
• San Diego is affected by the California Current

Tags

NGSS.MS-ESS2-6

When heat is transferred during convection, heat will always move from _________ to __________ temperatures.

• low to high
• high to low
• they don't move

Deep currents are controlled by _______ and ________.

(Pick 2)

• temperature

• Nemo

• salinity

• climate

• precipitation

Tags

NGSS.MS-ESS2-6

What can you infer about the water at the surface of the ocean, compared to the water hundreds of meters below?

• Surface water tends to be saltier

• Surface water tends to be denser.

• Surface water tends to be warmer

• Surface water tends to be calmer

Tags

NGSS.MS-ESS2-6

____________ air rises because it is ____________dense.

• Cool, Less
• Warm, Less
• Cold, More
• Warm, More

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which is true about atmospheric convection currents?

• wind is only caused by the rotation of the Earth
• heat is released from the oceans and land causing wind
• wind is caused by the polar ice caps
• wind is caused by the gravity of planets in our solar system

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6