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What objects in your home are filled with air?
Examples: rubber (or plastic) balls, balloons for children.
What gas do hot air balloons contain?
gas and solid are both filled with hot air balloweens
What is added to balloons and hot air balloons?
Balloons can be filled with air (don't float), or with hydrogen or helium (float because the gas is less dense). Hot air balloons use burners to heat the air so that it becomes slightly less dense than the cooler air around it, providing some lift.
How do balloons sink or float in the air?
In relation to the small balloons children are so fond a carrying, the balloon is lifted because it is filled with a lighter than air gas(helium/hydrogen). it falls when this gas leaks out over time.In relation to hot air balloons, the air is heated in the balloon causing it to rise(because hot air is less dense than warm). Over time the air cools and so the balloon falls. You can also expedite the rising of the balloon by jettisoning many of the weights that line the balloon.
What makes a balloon float?
All balloons do not float. Those that do are filled with a gas that is less dense than the surrounding air, so that is is displaced upward by weight of the denser air. Small balloons are typically filled with helium, a much lighter gas than the nitrogen and oxygen in the atmosphere. Larger balloons may be filled with heated air, which occupies a greater volume and is therefore "lighter" than air outside the balloon. Some dirigibles (airships) were filled with the lighter but flammable gas hydrogen. Hydrogen can be split from water and used to fill thin plastic bags, which will also rise into the air like balloons.
Is hot air balloons filled with helium?
No, it is filled with heated air.
What are hot air balloons filled with?
It is simply air that has been heated. Hence the namehot air balloons are filled with hot air from a propane tank
Why do helium filled balloons float upwards but air filled balloons drop down?
bcoz helium is lighter than air
When balloons are filled with this they are lighter tha air?
Helium.
Why is air balloons filled with helium?
Because it is a safe gas that is less dense than air, thus balloons float in air
Is helium suitable for blowing up balloons?
Yes, balloons filled with helium will be buoyant in air
Blows up like balloons when filled with air?
alveoli
How air balloons float?
They are filled with hot air. The hot air raises and take the balloon with it
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.
How do you know hydrogen gas is lighter than air?
Balloons filled with it float in air
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.
