gas and solid are both filled with hot air balloweens
Hot air is used for hot air balloons.
Just regular air, which is heated. That's why they are called hot air balloons! The fuel gas used for heating the air is usually propane.
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.
heliums ligther
hot air balloons
No, hot air balloons, as the name suggests, contain hot air, not helium.
A hot air balloon contains helium. M. Saffi.Ullah
Hot air is used for hot air balloons.
Balloons contain helium or hot air.
Just regular air, which is heated. That's why they are called hot air balloons! The fuel gas used for heating the air is usually propane.
helium or oxygen depending on what you put in them
which gas is in ballons
gas and steam
hydrogen, helium, hot air
they contain helium molecules which are lighter than the air we breath making the balloons rise
there are many different types: hot air balloons, gas balloons, party balloons, weather balloons and many more complex types of balloons.
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.