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What makes balloons float when they are full of air but not float when they are deflated?
Balloons float when they are full of air because the helium or air inside is less dense than the surrounding air, creating buoyancy. When they are deflated, the balloon is denser than the surrounding air, causing it to sink rather than float. This is due to the principle of buoyancy and the difference in density between the balloon and the air.
Why do balloons float in the air?
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.
Why do bubbles float?
Bubbles float because they are filled with gas that is lighter than the surrounding air. This causes them to rise and float on the surface of liquids or in the air.
What must happen for a balloon to float in the air?
For a balloon to float in the air, it must be 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.
Why can the lantern float in the air?
The lantern can float in the air because it uses a heat source, such as a flame, to heat the air inside the lantern. When the air inside the lantern is heated, it becomes less dense than the surrounding air, causing the lantern to float.
