Reflection on ninth lesson by Lionel

Okay, this week I learnt more about how to make a model of the ozone layer. Our group went through the materials needed to make the model.It was decided that I would buy the materials. So I bought some cling film and wooden sticks. (The others bought the rest.) Oh yah, earth Hour is coming soon (28th march) so I am going to switch off my lights for an hour.