Mr Dunnet's visit

On Monday Mr Dunnet, who is the science teacher at Spotswood College, came to Fitzroy School to show us some science.Some of the experiments he did were: homemade lava lamp, changing the colours of chemicals, making elephant toothpaste(chemical foam)  and some fun with dry ice and fire.Mr Dunnet told us a few interesting facts: in a table (or any solid object) the particles are always vibrating even though you can't see it. Mr Dunnet also said
that in science, red usually means that the chemical is acidic or dangerous and blue usually means the chemical is neutral.