Convection currents

The main reason that we have currents in the ocean and air is

• the sun heats the air and ocean evenly everywhere
• the heat inside the earth heats the ocean and the ocean heats the air
• the sun cannot heat both the air and water, so one must heat the other
• the sun heats air and water more at the equator because it receives more direct sunlight

Tags

NGSS.MS-ESS2-6

Energy for convection on the Earth comes from...

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

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

In convection, COOL air

• Rises
• Sinks

Tags

NGSS.MS-ESS2-6

In convection, WARM air

• Rises
• Sinks

Tags

NGSS.MS-ESS2-6

Warm air rises and the cool air sinks demonstrates this type of heat transfer.

• conduction

• convection

• radiation

• Insolation

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

• more
• less

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Near the ceiling of a room the air is warmer.  The warm air rises because of

• conduction
• convection
• radiation