If you're question refers to a screen protector on your iPod, and there's a bubble between it and the screen, try using a hair dryer to heat the screen protector around the bubble, and try pushing the bubble to the nearest edge, using your thumb. If it's not too bad, that should get it out. Don't use anything like a key (I wouldn't even use plastic), you can scratch the screen protector and leave bad marks on it.
A water bubble is made of air. If you remove the air from it it will not be a bubble anymore.
The level contains a bubble of air.
To prevent injecting an air bubble into your blood, which can kill you.
The Incas invented the bubble. back then soil was dumped into a vat and the air forced a bubble threw threw air.
The speed in which an air bubble will travel upwards in water will depend on how small the bubble is and the elevation in which the bubble is being released. The smaller the bubble, the faster it will travel upwards.Ê
air
When the blow on the gum, air builds up and comes out as a bubble.
Air.
by air
Sealed air
The air bubble could get lodged in the heart, preventing blood from flowing to the lungs.
If you are asking about a bubble in a liquid, the answer is that the bubble has lower density (the gas inside is "lighter") than the surrounding liquid. If you are asking about a soap bubble, the answer is that air currents carry the bubble up. The bubble itself is not lighter than air (unless filled with another gas) but the film making the bubble is so thin and light that air currents can move it easily.