This could well be the simplest science experiment that I've ever shared. Don't let that put you off - it's really cool and all you need is a sheet of paper and an empty drinks bottle. Let's do this!
What do I need:
A plastic bottle
A sheet of paper
How do I do it?
STEP1- Tear off a small piece of paper and scrunch it up into a ball so that it fits in the mouth of your bottle!
STEP2- Lay your bottle on its side and put the scrunched up piece of paper into the mouth of the bottle, as shown!
STEP3- Here's where it gets fun! Challenge a friend to blow the piece of paper into the bottle (maybe place a sporting bet on it if you want to profit from science!). Try it - the piece of paper will come flying out!
What's going on?
This is all to do with Bernoulli's principle - he's one of those scientists that everyone's heard of but by no means everyone can remember what he said!
Bernoulli noticed that air has a lower pressure when it's moving more quickly. As you blow into the mouth of the bottle the air is moving fastest - so is at the lowest pressure. Inside the bottle the air is moving more slowly - so a higher pressure. As the pressure is higher inside the bottle than in the mouth this pushes the paper out!
More Fun Please - Experiment like a real scientist!
What happens if you don't use a piece of paper? What else could you try instead?
Is it possible? How can you blow the paper in?
How does using different shapes and sizes of bottle change the experiment?
Even The Dragons Love Sublime Science Experiments
Honoured To Receive A Queen's Award For Innovation
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