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Because it is a safe gas that is less dense than air, thus balloons float in air
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∙ 10y ago
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Is hot air balloons filled with helium?
No, it is filled with heated air.
Why do helium filled balloons float upwards but air filled balloons drop down?
bcoz helium is lighter than air
Is helium suitable for blowing up balloons?
Yes, balloons filled with helium will be buoyant in air
Why do helium-filled balloons float up in the air?
Helium is lighter than air.
Why will helium filled balloons float in the air?
Because helium is lighter than air.
When balloons are filled with this they are lighter tha air?
Helium.
Why does a helium balloom float in air?
Helium is lighter than air. so balloons filled with helium will float in air
What happen when a balloon is filled with helium?
Helium is lighter than air and a balloon filled with helium may rise up.
What are helium's practical uses?
Helium is lighter than air. So balloons or air ships filled with helium will float.
What is helium mostly found in?
In helium balloons and blimps. Helium is lighter than air. So balloons or blimps filled with helium will float or rise up
How do the Macy's thanksgiving parade balloons float?
Those balloons are filled with helium gas. Helium is lighter than air. Helium is a noble gas.
Why is there a difference in the size of the balloons after one week which is filled with air and helium?
helium gas is warmer than air.
