Science: Convection Currents

What is convection?

• Transfer of heat through the movement of a solid

• Transfer of heat through radiation

• Transfer of heat through conduction

• Transfer of heat through the movement of a fluid

Tags

112.20.b.10.A

Which of the following is an example of convection currents?

• Movement of hot air expanding and cool air contracting

• Movement of hot air sinking and cool air rising

• Movement of hot water rising and cold water sinking

• Movement of hot air rising and cool air sinking

Tags

NGSS.MS-ESS2-6

What causes convection currents?

• Magnetic fields in a fluid

• Friction between two fluids

• Gravity pulling on a fluid

• Uneven heating of a fluid

Tags

NGSS.MS-ESS2-6

In which layer of the Earth do convection currents occur?

• crust

• core

• atmosphere

• mantle

What happens to warm fluids in convection currents?

• They rise due to their lower density and are replaced by cooler fluids that sink.

• They remain stationary and do not move.

• They evaporate and turn into gas.

• They sink due to their higher density and are replaced by cooler fluids that rise.

Tags

NGSS.MS-ESS2-6

What happens to cool fluids in convection currents?

• solidify

• evaporate

• rise

• sink

Tags

NGSS.MS-ESS2-6

Which of the following is NOT an example of convection currents in nature?

• b) wind blowing through trees

• c) lava flowing from a volcano

• d) a car engine running

• a) boiling water in a pot

Heat is transferred by convection currents through the (a)   .

• convection
• conduction
• radiation
• movement of a fluid

The primary source of heat for convection currents on Earth is _____.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

What is the role of convection currents in weather patterns?

• Convection currents have no role in weather patterns.

• Convection currents only affect ocean currents, not weather patterns.

• Convection currents transfer heat energy and create vertical movement in the atmosphere, influencing weather patterns.

• Convection currents create horizontal movement in the atmosphere, not vertical movement.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6