heat transfers and ocean convection currents

Dropdown

Carole owns a two story house with a heating and cooling unit on each floor. In the winter she mostly uses the downstairs unit because the volume of warm air expands and ​

Select answer

, while the cooler air contracts and ​

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. This warms the whole house through ​

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.

Convection, Conduction, Radiation

Heat Transfers

Multiple Choice

Hot chocolate is stirred with a spoon and the spoon gets hot.

• Conduction

• Convection

• Radiation

Conduction

Transfer of heat by direct touch. The spoon is directly touching the liquid.

Multiple Choice

The Sun warms your skin on a cold day.

• Conduction

• Convection

• Radiation

Radiation

Transfer of heat through electromagnetic waves. On a sunny day, you can feel the warmth of the Sun's rays on your skin.

Multiple Choice

Macaroni rises and falls in a pot of heated water.

• Conduction

• Convection

• Radiation

Convection

Transfer of energy through heat rising through air or a liquid.

Multiple Choice

You burn your hand by touching a hot stove.

• Conduction

• Convection

• Radiation

Conduction

Heat transfer through direct touch.

Multiple Choice

Warming your feet in front of a fire.

• Conduction

• Convection

• Radiation

Radiation

Transfer of heat through electromagnetic waves.

Multiple Choice

Hot air balloon rises.

• Conduction

• Convection

• Radiation

Convection

Transfer of energy through heat rising through air or a liquid.

Multiple Choice

The air near the ceiling in a room is warmer than the air near the floor.

• Conduction

• Convection

• Radiation

Convection

Transfer of energy through heat rising through air or a liquid.

Multiple Choice

The material in a lava lamp rises and falls.

• Conduction

• Convection

• Radiation

Multiple Choice

The sidewalk increases in temperature on a sunny day.

• Conduction

• Convection

• Radiation

Radiation

Transfer of heat through electromagnetic waves. The Sun's rays heat up the sidewalk.

Multiple Choice

The sidewalk burns your bare feet in the summertime.

• Conduction

• Convection

• Radiation

Multiple Choice

Convection Currents cause daily patterns of clouds, wind, precipitation, and air pressure.

• True

• False

Poll

Did you notice the difference between the Day and Night Cycles of Convection Currents?

• Yes

• No

Day Cycle

What do you notice?

Multiple Choice

What provides the energy to create warmth during the day?

• The Moon

• The Stars

• The Sun

Multiple Choice

What happens to warm air?

• It rises.

• It blows towards the coast.

• It sinks.

Night Cycle

What do you notice?

Multiple Choice

What happens to cold air?

• It rises.

• It blows towards the coast.

• It sinks.

Multiple Choice

What happens to the Convection Cycle during the night?

• It reverses from the cycle during the day.

• The heat is provided by the Moon.

• The wind stops blowing.

Atmospheric Convection

What do you notice?

Multiple Choice

When the sun heats the ground:

• Radiation

• Convection

• Conduction

Multiple Choice

When the ground heats the air:

• Radiation

• Convection

• Conduction

Multiple Choice

When warm air rises:

• Radiation

• Convection

• Conduction

Poll

Does air density play a role in Atmospheric Convection?

• Yes

• No

Air Pressure

What do you notice?

Multiple Choice

What do we call the circle formed by convective air movement?

• Wind

• Weather

• Convection Cell

Multiple Choice

Where do we find lower pressure air?

• In warmer, rising air.

• In cooler, sinking air.

Multiple Choice

Where do we find higher pressure air?

• Sinking over a cool surface.

• Rising over a warm surface.

Multiple Choice

Do Convection Currents flow within the Earth's oceans?

• Yes

• No

Ocean Currents

What do you notice?

Multiple Choice

Where is the cold, salty water?

• Deep in the ocean

• Shallow surface water

Multiple Choice

Warm, shallow ocean currents are by the Poles.

• True

• False

Thermohaline

What do you notice?

Open Ended

What do you think Thermohaline means?

Multiple Choice

What happens to cold ocean water at the Poles?

• It moves towards the Equator.

• It mixes with the brine in the deep ocean.

• If it doesn't freeze, it starts to sink.

Multiple Choice

What happens to ocean currents at the Equator?

• The water warms at the surface.

• The water moves poleward.

• The water losses heat.

Multiple Choice

What happens to ocean currents at the Equator?

• The water warms at the surface.

• The water moves poleward.

• The water losses heat.

Poll

Do you think ocean currents are more complex than atmospheric currents?

• Yes.

• No.

• I need more information.

Poll

Did you learn about convection currents during this lesson?

• Yes.

• No.

• I want to learn more!