Dear Year One,
Did you add any salt to your acid yesterday? What did you notice? Salt becomes a catalyst (it causes a change). In this case, the salt causes the chemical reaction to happen quicker. As I said in the results video, what a great introduction to being a chemist or an architect!
Welcome to Experiment 2.
Today you will need:
3 pieces of paper
books, newspapers or magazines.
Watch my video (Children, Video Centre, Year 1 Closure, Experiment 2) to find out your challenge. Then when you have completed your experiment, go to the results to compare with me.