How Helium Balloons Work There is something incredibly special about helium balloons! If you buy one at the circus or fair, you can hold its string and it will ride along above you. If you let go of the string it will fly away until you cannot see it anymore. If you have ever wondered why it flies away, the passages below can help you to figure out the mystery. Helium floatation Helium balloons work …showed first 75 words of 510 total…

…showed last 75 words of 510 total…lots of alpha particles and a natural gas pocket tends to be a sealed container underground. Helium is then carefully distilled out of natural gas to produce the helium we put in balloons. Helium is safe for balloons pumping because it is a very stable gas (Noble Gas). However, since the cost of extraction of helium is so expensive, this explains why a helium air balloon costs you quite a fortune when you buy it.