science roadshow

Today I went to the science road show.There was heaps of cool things there. Before we got to tutu we had to listen about our oxygen  this girl called Kaia Venack blew through a tube of blue water.when she blew the water turned yellow.my favourite  experiment was  the sound operater you have to spin this metal gear and it made the sound of a motorbike engine. I got bored so I looked through a hole it felt like I was floating through space with no suit on.