The bacteria eats of the banana, that causes a gas. The gas goes into the balloon,
and inflates it.
water and air
Yes, balloons filled with helium will be buoyant in air
alveoli
Gases used are: air (and hot air), helium.
Helium, because it is lighter than air.
Hot-air balloons can rise up into the air because hot air is lighter, allowing it to float up into the sky.
water and air
Yes, balloons filled with helium will be buoyant in air
1000feet
Magic...
they contain helium molecules which are lighter than the air we breath making the balloons rise
alveoli
Helium is lighter than 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.
Gases used are: air (and hot air), helium.
Hot air balloons are a hobby for people that can afford them. They require crews of several people to chase the balloon and pack it up for the next launch.
Helium is lighter than air, hence it will rise up in air, making things float up in the air.