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What else can I help you with?
Why does a balloon need hot air?
A balloon needs hot air to make it rise because hot air is less dense than cold air. When the air inside the balloon is heated, it becomes lighter and causes the balloon to lift off the ground and float in the air.
Do you need helium to make a balloon float?
Yes.
Why does a balloon pop with heat?
Heat causes more activity in the atoms inside the balloon. This causes expansion as they are bouncing around inside more than when they were cold. They need more room. The expansion causes failure in the balloon.
Why doesnt a balloon float with your air?
A balloon does not float with your breath because the air you blow into it is denser than the surrounding air. To make a balloon float, you need to use a lighter gas, such as helium, which is less dense than the surrounding air and creates enough lift to keep the balloon suspended.
Why does a balloon pop when heated?
Heat causes higher activity level in the atoms inside the balloon. This causes the balloon to expand as they are moving around inside more than when they were cold. They need more room to move. The expansion causes the balloon to pop.Hope this helps, I know it was in my science textbook and I didn't get it at first.
Why does a hot air balloon need flame in order to take off?
A hot air balloon needs a flame to heat the air inside the balloon, making it less dense than the surrounding air. This temperature difference creates lift, allowing the balloon to float upwards. Without the flame, the air inside the balloon would cool down and the balloon would descend.
How do you make a balloon float again?
There are a few things you can do to help increase float time. First, be sure to tie a tight knot in the neck of the balloon. The balloons included in Balloon Time have extra-long necks for easier tying. If you are attaching ribbons to the balloons, be sure to tie the ribbon below the knot. For special occasions that require prolonged float time, you can also purchase and add ULTRA HI-FLOAT® product to your Balloon Time balloons.
How do you make a balloon rise?
To make a balloon rise, you need to fill it with a gas that is lighter than the surrounding air, such as helium. Helium is less dense than air, so the balloon is able to float upwards due to the lifting force created by the difference in densities.
What is the weight of water displaced by a massless balloon?
No real object is massless. Even a balloon has the mass of the balloon plus the mass of the entrained gas.But if the buoyancy of the entrained gas (hydrogen, helium) allows the balloon to float away, then it will displace no water. Even so, it still has mass.
In which parts of the USA do people need to use the most fuel to heat their homes?
Fuel is needed to heat homes. Cold environments, such as Montana and Colorado, are always cold and people need much more heat to constantly heat their homes.
Could you use helium to float an item into space?
No, air pressure increases as the balloon goes up, so the balloon will pop and fall to the ground. You can get high up in the atmosphere (but you need a LOT of helium and a balloon that can get VERY big) you will not reach "outer" space beyond the Earth's atmosphere.
Why is heat important to the cold-blooded animals?
They need the heat to stay alive. If their body temperature gets too cold they are sure to die.
