Helium is the gas usually used now. Hydrogen works, but is inflammable and so dangerous. There are also hot air balloons which require a heater to create the hot air and keep it hot.
Helium is the element commonly used to expand small objects and make them float. Its low density allows it to lift objects, such as balloons, creating the buoyant force necessary for them to rise in the air.
In conclusion, balloons float in the air due to the principle of buoyancy, which states that objects will float if they are less dense than the fluid they displace. The helium or hot air inside the balloon is less dense than the surrounding air, allowing the balloon to rise. Balloons demonstrate how manipulating density can be used to achieve buoyancy and enable objects to float.
Balloons blown up by mouth can fly briefly due to the air pressure inside causing them to float for a short period of time. However, they will eventually lose air and fall back down. helium-filled balloons are typically used to make them float for longer periods.
Hot air balloons do not use helium; they are typically filled with hot air. Helium is non-flammable and more commonly used in other types of balloons like weather balloons or party balloons. The hot air inside a hot air balloon is what allows it 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 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 commonly used to fill balloons. It is non-flammable and lighter than air, allowing balloons to float.
Helium is the element commonly used to fill balloons to make them float. It is lighter than air and creates lift within the balloon, causing it to rise.
Helium is typically used to fill airships and balloons due to its low density, which allows them to float in the air.
Helium gas , because helium is the most inert element of all, and does NOT ignite, and allows balloons to float. If carbon dioxide was used, then the balloons would fall to the floor. Hydrogen is NOT used , because it is flammable and explosive, when mixed with air.
The nonflamable element used in balloons is Helium, (He).
Helium is the element commonly used to expand small objects and make them float. Its low density allows it to lift objects, such as balloons, creating the buoyant force necessary for them to rise in the air.
Helium is a gas used to inflate lighter than air balloons.
Balloons that are filled with hot air, hydrogen, or helium will float, or rise upward, because the less-dense gases inside them are displaced by the heavier air around them. Balloons will only rise until the gas density inside them is equal to the density outside. In the case of helium balloons, this may be above the elastic limit of the balloon, and it will pop or leak.
Element: He Helium.
Foil balloons are filled with helium. Helium is lighter than air and because of this, it is one of the gases that can make a balloon float. It's the preferred gas for these type of balloons because it isn't flammable and is inert, meaning undesired chemical reactions are rare.
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.