There is a lot of talk of soccer at the moment. Teacher had some interesting science to show us today that looks like a soccer trick. Teacher made a small ball out of tissue. We had to blow it into a bottle goal. It was much much harder than it looked.
When we blew the ball, most of the time it jumped out of the bottle, instead of going in, as we expected. Lots of us tried this, and we then tried to find a sure way to get the ball in the goal. What we discovered was that if you blow very hard at the ball, the air rushes past the ball, hits off the bottom of the bottle, gets forced back up the bottle again, and rushes out of the bottle, taking the ball with it. 
If you want to get the ball in the bottle, you have either to blow really softly on the ball, or else you have to use a straw to blow air directly at the ball. We are going to practise this lots at home.
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