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∙ 11y ago
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Why does a balloon need hot air?
Hot air is less dense compared to cold air. The heated air in the balloon will rise, making the balloon float in the air.to make it rise.
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.
Do you need helium to make a balloon float?
Yes.
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.
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.
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.
Why would the lizars need an outside heat source?
Lizards are cold blooded and need heat from the sun.
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.
Why are there no large reptiles in cold countries?
Larger reptiles need more heat to warm up there body. Cold countries, being cold, cannot supply that heat.
How is heat being transfered when you place your finger in the cold beaker why?
If the beaker has a cold water, or something else cold, in it than the heat that is in our finger will run out of you finger into the cold water. This leaves your finger 'empty' of heat, giving you the sensation of being cold. You need to remember that only heat moves. When you are cold you wear a jumper that keeps the heat in your body, not keep the cool out.
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.
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.
