Writing about the experiments.
We had lots of fun during Science Week. We did four experiments. Firstly we learned that you can mix oil and water together and shake them as hard as you can but they'll never become friends. That is until we added a few drops of washing-up liquid, which helped them to join together and is useful when washing dishes! Next, we filled a glass of water, put cardboard on the top and turned the glass upside down. The cardboard and water stayed in place, thanks to air pressure outside the glass, keeping us dry and the water inside the glass. After that, we tested whether an orange would float, before checking that it did in a basin of water. We had a great time predicting what would happen when we peeled the orange. Some of us were very surprised when the peeled orange sank. The peel of and orange is full of tiny air pockets that make it float to the surface. For the last experiment we made a tornado in a bottle. We used a plastic bottle, water, glitter and two drops of washing-up liquid. We turned the bottle upside down and spun the bottle around for a few seconds, which made a little tornado in the bottle. After we finished our experiments we wrote about what we had done and drew pictures.