Hot Air Balloons

What does flight mean?

• to move along the ground

• to move quickly

• to move through the air

• to move by sea

Who invented the first hot air balloon?

• Jean-Pierre Blanchard

• the Montgolfier Brothers

• the Wright Brothers

• Jimmy Doolittle

Besides temperature, how are cold air and hot air DIFFERENT?

• Cold air rises up in the sky

• Hot air is lighter than cold air

• Cold air is lighter than hot air

• Hot air stays close to the ground

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What helps pilots steer a hot air balloon?

• The use the wind currents

• They lean from side to side

• They use a steering wheel

• They turn handlebars

Which kind of day would be best for a hot air balloon ride?

• a cloudy day with little wind

• a cloudy, windy day

• a clear, windy day

• a clear day with little wind

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What causes the balloon to sink to the ground?

• The parachute valve opens and lets the cold air in.

• The pilot steers down to the ground.

• The parachute valve opens and lets the hot air out.

• The pilot fires up the burner.

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Where do the pilot and passengers stand?

• cockpit

• cabin

• basket

• envelope

What were the first passengers to fly in a hot air balloon?

• Cow

• Rooster

• Duck

• Sheep

Is the air full of molecules?

• Yes

• No

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What is the purpose of the parachute valve?

• It allows air to move freely in the balloon.

• It helps the balloon by storing fuel.

• It opens and closes to allow the balloon to descend and ascend. 

• It is an escape route in case of fire.