Can you blow up a balloon under water?

Answer 1

Yes, you can, but it's dependant on a few things. First, you must have enough air in your lungs to blow it up. Second, there DOES come a point where the pressure from the outside water is greater than the rubber can bear, and it explodes. That's bad for you, because the air might be shover back in your lung along with water quite violently. It'd also be very hard to blow up the balloon.

________

To the above...Well, yes you could. But there is no way the pressure from the outside water is going to make the balloon rupture because if the balloon is inflated, the pressure is by definition greater inside the balloon. Think of deep-sea organisms. They live under extreme pressures but doesn't need particularly sturdy bodies to cope with this. (You've probably seen those flimsy glowing jellyfish somwhere?) That's because they have a matching internal pressure that keep them from imploding. Nothing special about that, they are simply born and raised under these conditions in the same way as your body is accustomed to 1 bar of pressure. If you bring a deep sea organism to the surface quickly though, it will explode and make an awful mess.

Assuming that you would yourself be submerged to roughly the same depth as the balloon it would not be harder either, because the water would excert the same pressure on your chest and help you force air into the balloon. No matter where you are, the power needed to inflate the balloon is the same and depend on it's elastic properties. The other factors are all in equilibrium.

The one thing that differs is that you can't expect the balloon to grow as large as it would on surface level with one breath of air. If you inflate the balloon under water and bring it to the surface it will expand, yielding the same results.

Answer 2

Depending on the depth. Just barely under the surface it will compress a very small amount, the deeper you go, the more the balloon will compress (and get smaller) until the gas reaches a limit and more depth will no longer compress the gas.

Answer 3

Fill a balloon with vinegar. Put several teaspoons of baking soda in a bottle. Carefully stretch the ballloon over the top of the bottle. Lift the balloon, mixing the two ingredients, and the balloon will inflate without air or blowing.

Answer 4

Use a cylinder filled with gas and connect one end to the cylinder and the other end to the balloon. Balloons filled with helium are generally filled this way.

Answer 5

No it won't, only helium balloons float in the air.

Answer 6

Any other gas will work; although some would be dangerous to use; pure oxygen, hydrogen, propane etc.. You can also use fluids. Helium is a common gas used to make balloons float.

Answer 7

brow. its obvious. you can blow up a ballon by over filling it with air, helium or even water. you can pop it with a needle.

Answer 8

You normally blow a balloon by using your mouth and emptying the air out of it into the balloon. Or buy a pumper from party city.

Answer 9

no you can just blow but you can only blow it in a bottle when you have a straw in it

Answer 10

blow up the balloon

pull on the mouth

go to a sink or outside and fill it with water

enjoy