Make the balloon capable of further expansion. That way as the balloon rises and the barometric pressure falls the balloon can expand and allow its internal gases to achieve a constantly decreasing density.
red balloon
No... it wouldn't even survive the conditions of the upper atmosphere, unless it was a very tough balloon.. even if it could I'm assuming eventually the atmosphere would reduce to a point where it was as dense as helium or hydrogen (the gas I'm assuming would make your balloon float) and your balloon would stop anyway at a maximum altitude. Either way.. after that, the balloon would have to break away from Earth's gravity (not easy) and then somehow cover 382500km or so to get to the Moon itself..
He would heat it.
That would be Helium
Simple...hot air rises..
The balloonist would turn of their burner so that the balloon can lose its latitude and then gradually the balloon will come down.
You could use the balloon as a mold for something by making paper mache and using the shape of the balloon for that item. Let's say you want to make a bowl. I would blow up the balloon, shred paper, and mix the paper with wheat paste. I would then put the paper mache on half of the balloon and let it dry. After it is dry I would pop the balloon and what I have left is a bowl shape. Then, I would paint the bowl and decorate it. Now you have a bowl.
Dow
you can't make balloon in the facebook
Physically it is impossible. The air would rush through the bottom of the balloon so quickly that it would fill up fast and pop quickly.
To make air lighter you would increase the heat inside the balloon, making it less dense, causing it to rise.
Hot air expands. When it expands, it becomes less dense and rises.