Today the science roadshow came to our school.It started off with Shane and Anna putting on a show in the front of the learning street. They called the show fire and ice they showed us some cool tricks and they talked about temperatures of things we use in our everyday life. One of the tricks was they had a metal stick with a hoop on the end of it. He then gave one of the volunteers a ball and said to drop the ball through the hoop to see if it would fit and it did easily. He then put the stick into a container full of liquid nitrogen. after a little bit he pulled out the stick and asked for the volunteer to do the same thing , drop the ball through the hoop but this time it didn't fit. After he explained the trick and told us that the molecules when they are cold they move closer together. After their show they opened up the classrooms where there was a whole lots of science activities that we could do and find out about what causes it to happen. It was a really fun experience and you learn a lot from it.
Here are some photos of the things we did.