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How are the convection currents in the lava lamp different than convection currents in the atmosphere?

• warm air in the atmosphere sinks instead of rises

• The earth gets its heat from the sun and the lava lamp gets its heat from the light bulb below.

• Convection cells in the atmosphere flow in the same direction instead of opposite

• Cold air is less dense instead of being more dense.

In convection, WARM air

• Rises

• Sinks

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Why does cutting down trees increase global warming?

• trees soak up carbon dioxide

• trees provide shade which counteracts global warming

• trees absorbs the sun's energy without radiating back into the atmosphere

• trees drain greenhouse gases like methane from soil

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As water ​ (a)   from a lake, it becomes a ​ (b)   that moves directly into ​ (c)   without ever being part of the ​ (d)   outside of the clouds.

• evaporates

• gas

• clouds

• air

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What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.

• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.

• When heat transfers from objects that are touching.

• When heat transfers through the heater or AC in your house.

Which of the following answers best explains how the Sun influences the temperature differences in land, air and water and contribute to atmospheric movement?

• The Sun heats the land faster than water causing the air above the land to warm and rise.

• Convection causes the Sun to heat the water and land causing the air above it to warm and rise.

• The Sun heats the air through radiation and as the hot air sinks it warms the water and land equally.

• The water is able to heat the land faster through conduction because of the Sun warming the water through radiation.

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NGSS.MS-ESS2-6

Convection currents in the atmosphere are caused by what?

• Warm air rising and warm air sinking

• Cold air rising and cold air sinking

• Warm air rising and cold air sinking

• Cold air rising and warm air sinking

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What is the source of the thermal energy that heats our planet’s atmosphere?

• Earth's core

• Green plants

• The Sun

• Fossil Fuels

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The Sun warms the atmosphere and drives convection currents because -

• warm air is less dense, so it rises.

• the warmed air cools and makes rain.

• the cooler land pushes away warm air.

• warm air, in contact with cool air, rotates.

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The rising and sinking of air creates _____ currents.

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