Reception Boat Designers 13th June 2025 Pre-prep In Reception, we had a great time investigating floating and sinking by designing and testing boats made from playdough. First, we tested different shapes, balls and flat pieces and discovered that they sank to the bottom. Then we experimented by moulding the playdough into curved, bowl-like shapes. To our excitement, these floated on the water! The children made predictions, observed carefully and discussed why some shapes floated while others didn’t.