Parachutes, Hot Air Balloons, Scientific Method

Hot air is ________dense than the cooler air around it, that is how the balloon can rise.

• more

• less

What part of the hot air balloon opens to allow air to enter and exit the envelope quickly?

• Basket

• Ballas

• Valve

• Value

What part of the hot air balloon carries passengers?

• Basket

• Ballas

• Balloon

• Box

When the air is heated it starts to...

• Float

• Sink

• Do Nothing

• Rise

What is the colourful balloon part of the hot air balloon called?

• Canopy

• Bubble

• Balloon

• Envelope

What is a hot air balloon?

• Glider

• Floater

• Bird

• Powered Flyer

The direction of a hot air balloon can be accurately controlled.

• True

• False

What is the heat source of a hot air balloon?

• Heater

• Burner

• Candle

• Barbecue

What is the purpose of the parachute valve?

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

• It allows air to move freely in the balloon.

• It helps the balloon by storing fuel.

• It is an escape route in case of fire.

Why did the balloon come back down to the ground?

• The air around it pushed it down.

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

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

• The balloon may have had a hole in it.