We looked at lots of different types of paper and brainstormed words to describe how they looked and felt. Then we made predictions about what would happen to the paper if it got wet. Some of us thought that it would sink or rip. We dipped each piece of paper into a basin of water. The paper changed colour and floated. Some of it had plastic on one side which stayed dry. We learned about plastic before, so we knew that it is a waterproof material. We discovered that paper is not a waterproof material.