because there are helium or gas in the balloon.
air balloons or hot air balloons fly because they fill with a very light type of air. The air is hot air.
Hot air is used for hot air balloons.
hot air balloons and balloons
The wind between the balloons creates a lower pressure in the air, so the air around it pushes the balloons together.
hot air balloons
Hot air balloons float because hot air displaces cool air in the atmosphere
plastic balloons lose air because particles are moving in the balloon and leave it
there are many different types: hot air balloons, gas balloons, party balloons, weather balloons and many more complex types of balloons.
This may not help, but I didn't think it had ANYTHING to do with hot-air balloons...
Buoyancy allows hot air balloons to fly.
when do hot air balloons cometo bucyrus ohio
People think that hot air balloons where made for battles.