Generally, it is helium. Hydrogen could work, but that would be dangerous.
Balloons float in the air because they are filled with a gas that is lighter than the surrounding air. This gas, typically helium or hydrogen, creates buoyancy, causing the balloon to rise and float.
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.
Hot air balloons typically use propane gas as a fuel source for the burner that heats the air inside the balloon envelope. The propane is burned to heat the air, which causes the balloon to rise.
Balloons float in the air because they are filled with a gas that is lighter than the surrounding air, such as helium or hot air. This creates a buoyant force that allows the balloon to rise and float.
Helium is the most common gas used to inflate balloons because it is lighter than air. This allows the balloon to float and rise when filled with helium.
Helium gas is found in balloons that rise to the ceiling. This gas is less dense than air, causing the balloon to float upward.
Balloons rise because the gas inside them is less dense than the surrounding air. When the gas molecules in the balloon are heated, they spread out, causing the balloon to become less dense and rise.
If you want the balloons to float, you would probably use helium.
Helium is lighter than air, hence balloons filled with helium will float and rise up.
Balloons float in the air because they are filled with a gas that is lighter than the surrounding air. This gas, typically helium or hydrogen, creates buoyancy, causing the balloon to rise and float.
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.
No, balloons are not magnetic. If they rise, that has nothing to do with magnetism.
Hot air balloons typically use propane gas as a fuel source for the burner that heats the air inside the balloon envelope. The propane is burned to heat the air, which causes the balloon to rise.
Balloons stick to the ceiling due to static electricity. When a balloon rubs against the ceiling, it can transfer electrons, creating an imbalance in charges that causes the balloon to be attracted to the ceiling. The static electricity generated creates a temporary adhesive effect.
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.
In a "hot air" balloon, which you refer to in your question, the gas is hot air. Heated air rises, so the balloon rises. The gas used in the burner, to heat the air, is propane.
Balloons float in the air because they are filled with a gas that is lighter than the surrounding air, such as helium or hot air. This creates a buoyant force that allows the balloon to rise and float.