they don't float ONLY with helium. They float with any gas that is less dense than air, for instance hydrogen.
Helium is good for balloons because it is lighter than air, which causes the balloon to float. Helium is also non-flammable, making it a safe choice for inflating balloons. Additionally, helium does not react with the materials in the balloon, allowing it to stay inflated for a longer period of time.
Helium is a colorless gas that is commonly used to fill balloons to make them float. It is lighter than air and non-flammable, making it safe for use in balloons.
Helium is commonly used in balloons to make them float and in airships for lift. It is also used in cryogenics, as a coolant in nuclear reactors, and in MRI machines for cooling the superconducting magnets.
Yes, all substances have density. Helium has a density of 0.1664 g/liter at 20°C and one atmosphere of pressure.
They Do Not use Hydrogen gas to fill up balloons. People use Helium gas to fill up balloons (ordinary party balloons, and big working balloons such as the one used by Goodyear). Helium is Not Flammable. Hydrogen is Flammable and has as tendency to burst into Flame, similar to the German Blimp/Dirigible Hindenburg. Since the US Navy lost Two Helium Blimps in Bad weather; The Akron and the Shenandoah (with a great loss of lives), the US Navy almost never uses Blimps anymore.
Helium
Helium
Helium is lighter than air. so balloons filled with helium will float in air. warming will make them float or rise up faster.
Balloons are usually filled with helium gas to make them float. Helium is lighter than air and provides the necessary lift for the balloon to float.
helium is less dense than air. :) so helium will float better than air
Helium balloons float because helium gas is lighter than the surrounding air. This causes the balloon to be buoyant and rise up in the atmosphere.
Helium balloons float in the air because helium is lighter than the surrounding air. This causes the balloon to be buoyant and rise upwards.
Helium is lighter than air. Hence balloons or blimps filled with helium will float.
Helium to get them to float.
If you want the balloons to float, you would probably use helium.
Helium gas is most commonly used to fill balloons to make them float. Helium is lighter than air, which causes the balloon to rise and float.
Helium is lighter than air. so balloons filled with helium will float in air