It depends with what the balloon was inflated with. If it's you blowing into the balloon it won't go anywhere but if it's filled with hydrogen or helium, then they will become buoyant.
The reason, hydrogen and helium are lighter than air. They have a lower density.
If you don't tie off the end, it will project itself around the room until it expends all the air that you added.
Inflate it with water.
yeast! people why are you sooooo stupid?
The elastic contraction of the rubber in the balloon's membrane causes the pressure in the air inside an inflated balloon. When you inflate a balloon, you have to expand the latex of the balloon, which stretches when filled with air from a pressure of 760 mm Hg to as high as 840 (about 10% higher than standard atmospheric pressure). If you inflate a non-elastic mylar balloon, it takes no effort: the air inside is at the same pressure as the air outside.
No, because no air is being pumped into it, only heated up.
because outside air is no longer compressing the sides of the balloon, so the pressure outwards is unbalanced and the balloon grows
it deflates!of course! ha. ha.
Your intestines inflate like a balloon
-- Inflate the balloon with some substance that is less dense than air. OR -- Inflate the balloon with air, then heat it after it is sealed.
Inflate it with water.
To inflate the balloon. Whether the gas is helium or just air from your lungs, gases are needed to inflate the balloon.
yes it will!
The air inside cools. Cool air shrinks. The balloon gets smaller.
The lungs act a bit like baloons. When you breathe in they will inflate, when you breathe out they will deflate. Using a balloon may be useful way to understand this, breathe into the balloon and it will inflate (this is what happens when you breathe in). Next, leave the air out (slowly) and this is what happens your lungs when you breathe out.
Blow up a balloon or inflate a tire.
Blow air into it!
yeast! people why are you sooooo stupid?
Yeast eats the sugar giving off CO2 which is a gas that will inflate the balloon. Added: But since carbon dioxide is heavier than air this balloon gas will never reach the 'top'