Above: Year 7 students, Tim Snowden and Lauren Daly conduct a science experiment on the water cycle as part of their Jason Project work.

From Monday 15th May - Friday 19th May, the school celebrated Science Week with lots of science activities. The highlight of the week was a visit by a staff member of the Investigator Science Centre.

He turned on a gas bottle and put a small piece of hollow wood on top. Then he got a garbage bag, swirled it around to fill it with cold air, then he held the bag over the gas bottle for about ten seconds. When he let go of the bag it floated upwards. See below left.

Above right:  From a tank, he put some liquid nitrogen into a thermos. He poured some of it over a balloon and this made the balloon sound like plastic. Then he blew on the balloon and it was back to normal again. I was thinking, how did he do that?

Other experiments David conducted included:

• David picked two volunteers and they were Mr. Draper and Ben. They had to blow up a balloon which was inside a coke bottle. Ben could blow his up but Mr. Draper couldn't. This was because Ben's had a hole in it, so the balloon could compress the air. Amazing!

• David got a balloon and filled it with hydrogen. Then he lit a candle and advised us to block our ears. I took his advice and blocked my ears. It was lucky I did because it was loud. He put the candle near the balloon and it caught fir for about half a second. Impressive! 
  See below left.

Above right: Megan assists David with another experiment with air.

• He took a rocket balloon and blew it up. Then he let it go and it went everywhere. The lesson of this was which ever way the air goes the balloon will go the opposite way. Cool!

• David got another volunteer and her name was Joanna. First he blew up a balloon. then on the balloon he drew her face. Then he said "It's missing ears, I know!" So he let the balloon go. Then he got two plastic cups and held them on the balloon. As he blew it up he let the balloon go and the cups stayed on! What do you think of that?"

Cameron Lithgow (Year 5)

Above: The students certainly enjoyed the experiments and presentation.

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