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When hot air rises, it creates convection currents that move the air upward. This process is known as thermal expansion, where the hot air becomes less dense and lighter, causing it to rise above cooler, denser air.

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1y ago

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How do hot air balloons stay in air?

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What does air do to help your heart?

Hot air rises. That is how a hot air balloon works.


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Hot air is lighter than cold air, so it rises up. Ex. A hot air balloon rises up because we heat the air and it goes up.


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How does warm air balloons float?

"Warm air", otherwise known as Hot Air Balloons, float because of one basic Law of Thermodynamics; heat rises. The air in a hot air balloon is hot, therefore, the balloon rises.


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The air density inside a balloon changes as it rises because the hot air inside the hot air balloon is less dense than the air around it causing it to fly since hot air rises. But as it rises it loses its hot air causing it to eventually not be able to fly anymore and come down.


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