A Science Discussion
Another reason I enjoy this project is the chance to discuss liquids and solids. We start out with a large solid brick of soap. We cut it into smaller (but still solid) pieces. As we add them to a large bowl we can see the solid keeps it shape. BUT, as it heats up and melts it starts to take the shape of our glass bowl, and later the shape of our silicone cups! As it cools it turns back into a solid. This is a great discussion to have early in the year if you plan to study solids and liquids later on (we do in the Spring!).