Clouds
Weather
Atmosphere
Density and Buoyancy
Pressure and Wind
100

These are the three main types of clouds classified by Luke Howard.

What are cumulus, stratus, and cirrus?

100

This is the name for the state of the atmosphere at a specific place and time.

What is weather?

100

This is the lowest layer of the atmosphere where we live.

What is the troposphere?

100

This is what warm air does: rise or sink.

What is rise?

100

This instrument is used to measure air pressure.

What is a barometer?

200

This type of cloud is thin, wispy, and found high in the sky.

What is a cirrus cloud?

200

This tool is used to measure air temperature.

What is a thermometer?

200

This atmospheric layer is where airplanes usually fly.

What is the stratosphere?

200

This is denser: warm air or cold air.

What is cold air?

200

When this drops, stormy or rainy weather is likely.

What is pressure?

300

This cloud type is known for bringing thunderstorms.

What is a cumulonimbus cloud?

300

These violent, spinning columns of air extend from a thunderstorm to the ground in flat areas and can cause major destruction.

What is a tornado?

300

In this atmospheric layer, meteors burn up.

What is the mesosphere?

300

This force allows hot air balloons to float.

What is buoyancy?

300

This is the main source of heat for Earth’s atmosphere.

What is the sun?

400

This type of cloud forms in flat layers and often brings overcast skies.

What is a stratus cloud?

400

This is the process of water vapor cooling and forming clouds.

What is condensation?

400

This is the hottest atmospheric layer, where auroras occur.

What is the thermosphere?

400

This happens to the density of air as altitude increases.

What is "it decreases?"

400

In the troposphere, this happens to air temperature as altitude increases.

What is "it decreases"?

500

This cloud type is a combination of cumulus and stratus and brings steady rain.

What is a nimbostratus cloud?

500

This is the scientific term for when liquid water turns into a gas.

What is evaporation?

500

This atmospheric layer fades into space.

What is the exosphere?

500

This happens to an object when its density is greater than the fluid it is placed in.

What is it sinks?

500

When warm air rises and cool air sinks, this process is occurring.

What is convection?

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