You can view a short video we made in class by clicking on ‘go to this pod’. You can also see short clips of the squeaky pop test for hydrogen and burning magnesium.

Colour filters are very odd. Just what is happening?

Download the animation here and send me a comment.

From osmosis

Today we made some chips and weighed them. We then put them in salty water or distilled (pure) water. We weighed them again and found out that the chips in the salty water lost weight and the ones in pure water gained weight. This is because water moves from high to low concentration.

You have been asked to write a conclusion and evaluation of the experiment. I started you off with the conclusion but you need to finish it for the distilled water.