An Uplifting Project. Mr. Rude Environmental Science. We will explore helium’s response to different temperatures, compatibility with other gases and its ability to rise and lift things. Scientists use helium balloon experiments to understand weather conditions and chemical interactions. .
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We will explore helium’s response to different temperatures, compatibility with other gases and its ability to rise and lift things.
Helium is a gas that is lighter than air. The balloon pushes air out of the way that weighs more than the weight of the helium and the balloon together so the heavier air comes in underneath the balloon and the balloon is pushed up in the air.
That’s why the balloon goes up in the air. This process will continue until the balloon reaches an altitude at which the air is the same density as the helium balloon. That is the maximum height which defines how high it can go.
As you get higher up the air pressure reduces so the balloon is going to try to expand. Depending on how heavy the balloon is and how quickly it’s losing helium (it can get through the gaps in the rubber polymers of the balloon quite easily) the balloon will keep on going upwards until either it gets heavy enough it can’t get any higher or the difference in pressure inside it and outside it is enough that it will explode.
If you just let go of a helium balloon it can go up a few miles (5,000 – 15,000 feet!)
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