The children have been using the topic of boats to explore floating, sinking, shape, material, and power. They have made predictions, made and raced boats and explained what happened. They have also tried to explain why some shapes, materials and forms of power are more effective than others. They were able to see the change from sinking to floating when they changed a ball of plasticine and of tin foil into a cup shape. The children also enjoyed watching some very cool clips of boats being launched!