'Hot air balloons rise' diaporamas de présentation

Convection

Convection. D. Crowley, 2008. Convection. To know how energy can travel by convection. Housing. Why do houses in hot countries have floor tiles, yet countries in colder countries have thick carpets?

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Properties of Air

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Hot Air Balloons Are Cool

Hot Air Balloons Are Cool. How They Work. Hot air balloons rise from earth because they are filled with air that is warmer than the air outside the balloon. Did you know that hot air balloons are so big that they can lift 1,000 pounds, they need 65,000 cubic feet of hot air.

416 views • 3 slides