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Helium rises because it is less dense than air which causes it to rise. For example, styrofoam is less dense than water which is why it floats in water.
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∙ 12y ago
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How do balloons float?
Balloons that are filled with hot air, hydrogen, or helium will float, or rise upward, because the less-dense gases inside them are displaced by the heavier air around them. Balloons will only rise until the gas density inside them is equal to the density outside. In the case of helium balloons, this may be above the elastic limit of the balloon, and it will pop or leak.
What happen when a balloon is filled with helium?
Helium is lighter than air and a balloon filled with helium may rise up.
What form is helium?
hot air balloons and balloons
What is the element used to fill balloons that rise?
heeleeum
Can a helium balloon be left outside?
If untied or secured properly to a post or something, helium balloons cannot be left in open. helium is lighter than air and it will rise up in the air easily.
Why do you think hot-air balloons can rise into the air?
Hot-air balloons can rise up into the air because hot air is lighter, allowing it to float up into the sky.
Does helium rise?
yes honey, that's why hot air balloons rise
Will a balloon rise if the air inside is hot?
The heating of the air through the use of a burner is what makes balloons rise.
Why the balloons filed with hydrogen does not rise indefinitely?
To rise, they need something to float on - i.e., air.
How high do hot air balloons go up?
they contain helium molecules which are lighter than the air we breath making the balloons rise
How do air balloons lift off from the ground?
Balloons filled with Helium rise because Helium is less dense than normal air. Hot air balloons lift off the ground because heat rises, and when the balloon is full of air of a higher temperature than its surroundings, the balloon will rise.
Why are hot air balloons able to rise into the air?
The hot air from the burner rises since it has little density, and then is caught in the balloon, which causes it to rise.
What source is used to fly hot air balloons?
Wind !... The balloons are filled with hot air, which causes them to rise. They are then at the mercy f the wind direction.
What 2 things that use hot air to rise?
hot-air balloons and birds in flight.
Why do hot air balloons rise with hot air?
Hot air is less dense than cooler air, therefore the balloon will rise (float) on the cooler air around it.
When does a air balloon rise?
A hot air balloon rises because when hot air is added it is intended to rise and when the hot air balloons wants to land, hot air is decreased.
Why do balloons float up into the air?
At a hot air balloon festival, hot air balloons slowly fill and then rise majestically in the predawn sky. These hot air balloons fly because of two fundamental principles of physics: the ideal gas law and Archimedes's principle.
