Balloon experiment

Today room 7 students did a science experiment. We had to put baking powder in the balloon and then blow it up and see what it would sound like.

Here some tips to do this.

Step 1: Put the balloon over the funnel

Step 2: Add a few spoonfuls of icing sugar into the funnel and shake it down to the balloon.

Step 3: Remove the funnel, inflate the balloon and tie the neck to stop the air and icing from escaping. Don't inhale when blowing up the balloon - you'll get icing in your mouth.

Step 4: Go outside to your large open space. Your helper should hold the balloon and a pin. Walk 100 large paces away from them to see if you can hear a sound come out from the balloon.

Step 4: Ask your helper to hold the balloon away from their body. Look at the balloon and signal for your helper to pop it. Watch and listen very carefully - you will hear the balloon pop and see the icing sugar escape.
This is what we did today for our science experiments.