In the Foil Boat Delivery Sprint, students become naval engineers as they design and build an aluminum foil boat capable of carrying the maximum possible cargo payload without sinking. Set inside the Ocean Explorers narrative theme, this focused 1-week sprint challenges Grade 2 students to investigate buoyancy, hull shape, and weight distribution — testing their design, recording load data, and making one evidence-based redesign before their final cargo test. What Students Will Do* Investigate