We were learning about Newton's Laws of Motion, we focussing on the third law - 'for every action there is an equal or opposite reaction.' We tested this law by creating a balloon rocket. To create the rocket we taped a balloon to a straw then treading a long bit of string though the straw.
What happened? When we release the balloon, the pressurized air in the balloon pushes against the air around the balloon sending it in the opposite direction down the string.
I found it easy to to understand what was happening and to find lots of different ways to change the experiment up a bit. One time I got the members of my science group to hold it high at one end and low at the other, I also got them to shake the string while the balloon was traveling along.
I found it challenging to do nothing as this project was quite easy, the only thing that was tricky was getting this blog post done before the deadline, because I had lots of other things to do so it just slipped out of my mind. But that's not really related to the actual observation.
Next time I will try tapping into some aerodynamics, to make the balloon move faster or on more of an angle. We did part one of another observation before this one, but as we did only the first part I will not talk about it on this blog post.
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