Fun air pressure experiment
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Want to do a fun and simple air pressure experiment? You simply demand a few basic supplies to make this sprink-o-lator!
Today nosotros're welcoming back Brusque Nelson from Make a Kidnection, where he uses stories to make science fun!
The experiment
The airship in a bottle experiment demonstrates the strength of the air pressure level all effectually us. Considering we're so used to the air pressure level pressing on our bodies, we don't even notice it. Only when your kids see that aforementioned air pressure keeping an untied balloon inflated – that'due south pretty cool.
Remember of how difficult you have to blow to inflate a balloon. The air pressure needs to push just as hard to keep the balloon inflated. And that same air pressure is pushing on our bodies all the fourth dimension!
And that'due south just the first part of the experiment. Then y'all fill the airship with water and release the air pressure, and the balloon squeezes the h2o out in a great fountain.
What's the purpose?
I'm a erstwhile loftier school science teacher and a mechanical engineer, and then I love science activities, especially when they chronicle to solving an bodily real-world problem. (That'south basically the definition of engineering – scientific discipline applied to real-world issues.)
So in this case, what real-world problem could you solve with a balloon-in-bottle that shoots h2o?
Well, what if your dragon was traveling through a barren desert and needed a portable drinking fountain?
That may be a bit of a stretch (airship pun intended), but it does get kids thinking nearly how this principle could be applied to create something useful. Run across if your kids can come with other ideas and share in the comments below.
What you lot'll demand
1) A plastic bottle like those pictured above. Any size will work as long as the bore of the opening is small enough to stretch a airship around.
2) A couple balloons – v″, 9″, eleven″, 12″ or xvi″ balloons volition all work. You only need one balloon, but if your kids desire to keep playing with the sprink-o-lator, they'll take to replace the balloon every couple times. (Screwing the lid on and off tears the balloon upwards.)
3) A thumbtack or pin to poke a hole in the bottle and the lid.
Run across the video below for a stride-by-step demonstration of exactly how to practise the experiment.
The fun science video
Bob the Dragon and I shot a curt video to prepare the phase for your kids. It'due south fun and empty-headed, but besides gives them a reason to practise this experiment.
Cheque it out with your kids, then keep watching while I show you lot exactly how to make a sprink-o-lator:
The bonus video
Then, to reward your kids for doing such a neat job on this activeness, prove them this bonus video featuring Bob the Dragon'due south favorite creature jokes. It reinforces the idea that science is fun and scientists accept a good sense of humor.
Stay in touch with Curt
Curt is a onetime scientific discipline teacher and school assembly presenter. Now he (and Bob the Dragon) make learning science fun at MakeAKidnection.com. You lot can too follow Curt and Bob the Dragon on YouTube. They release new experiments about every other week!
More than science experiments from Curt
- Balloon in a bottle
- Dancing raisins experiment
Source: https://www.themeasuredmom.com/fun-air-pressure-experiment/
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