To keep it hot you. The REASON they use a 'Burner' in a Hot Air Balloon is to 'heat the Air, to 'fill' the Balloon, so it will 'rise'... The only other way to get the air Hot enough to fill the Balloon, would be to make the 'Basket' MUCH, MUCH Larger, and fill it with Liberals, and just let them talk. BUT, I don't think the Balloon would ever get off the ground, because, the BULLCRAP would counteract the Hot Air, and they would cancel each other out...
A typical hot air balloon is filled with the same air we breath.
Well it has a gas fueled flame and the flames heat makes the balloon part fill up with hot air. Hot air rises so the hot air balloon will float into the sky like a helium balloon would.
As the air in the balloon is heated, it expands and becomes less dense, or that is, becomes lighter. This then provides lift to the balloon and the basket. The reason the air in the balloon expands, is because as it is heated, the molecules of air move faster and spread out to fill the entire volume of the balloon.
Hot air balloons are filled with hot air from a propane burner in the basket. Hot air rises. So provided the cooling air in the balloon is topped up from short blasts from the burner, the balloon will rise off the ground.
It is possible to use methane, but not advisable as methane gas is harmful
the gas takes the shape and size of the balloon
It will fill the balloon and make a oval sphere.
methane
Balloon will not fill up the full bottle in this experiment as the air is restricted by the walls of the balloon. Balloon is a solid so the air will take its shape.
well i believe hellium is the best thing to power a *balloon as when i used to go to narnia brewsters we used to get balloons to don't use methane as it come from cows dariares, thankyou good luck getting this question right.
Helium is the safest gas to fill in balloons, as it is light and noncombustable.
You fill up the balloon by asking G for the super helium.
when you fill a balloon with air the air makes pressure. the air pressure maximizes the balloon fabric allowing the balloon to expand.
The balloon will contract.
Yes. fill with water
Bubble wrap, foam, and Styrofoam. You could use that or you could put it in side a balloon and fill the balloon up with helium. I tried it and it really does work.