Hot Air Balloons

Why did the balloon eventually come back down to the ground?

• The air around it pushed it down.

• The air inside cooled and became more dense forcing the balloon to descend. 

• The air inside the balloon heated up and the air was too hot to rise. 

• The balloon may have had a hole in it.

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What are the two methods in which a balloon can descend? 

• Let the air cool or pop a small hole in the balloon.

• Add additional weight to the basket or let the air cool.

• Let the air cool or open the valve

• Let the air cool or jump up and down.

When traveling in a hot air balloon where does a person sit/stand?

• The Basket

• The Envelope

• The Valve

• The Burner

What is the last name of the two brothers that invented the hot air balloon?

• Hemsworth Brothers

• Montgolfier Brothers

• Bernoulli Brothers

• Gretzky Brothers

What makes the balloon go up into the air?

• cold air

• an engine

• hot water

• hot air

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In what year did the first successful hot air balloon fly?

• 1886

• 1783

• 1900

• 2022

To make the air in the hot air balloon less dense than the air around it, it must be heated.

• True

• False

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What happens when the air in the hot air balloon becomes less dense than the air around it?

• The balloon is able to float in the air.

• The balloon stays on the ground.

• The balloon sinks in the air.

• The balloon starts to deflate.

What part is A?

• Envelope

• Burner

• Basket

• Valve

In what state is the hot air balloon festival located?

• Alberta

• New Mexico

• California

• Canada