Convection

In an ocean, warm water moves __________ and cold water moves ____________.

• Down, Up
• Up, Down

Tags

NGSS.MS-ESS2-6

What causes wind?

• movement of high pressure to low pressure
• movement of low pressure to high pressure

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

During convection, more dense currents _________ and less dense currents _________.

• sink, rise
• rise, sink

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-ESS2-6

NGSS.MS-ESS2-5

At the seashore late in the afternoon on a hot day, a person often feels a strong breeze coming from the ocean because...

• the pounding waves generate air currents
• warm air over the ocean rushes in to replace the cool air that rises over the land
• the heavy, cool air over the ocean rushes in to replace the warm air that rises over the land
• there are no clouds to block the wind coming in from the ocean

Tags

NGSS.MS-ESS2-6

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

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy for convection on the Earth comes from...

• The sun
• The moon
• Solar winds
• The ocean

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-4

In convection, COOL air

• Rises
• Sinks

Tags

NGSS.MS-ESS2-5

In convection, WARM air

• Rises
• Sinks

Tags

NGSS.MS-ESS2-6

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Tags

NGSS.MS-ESS2-5