Compact Solar STEM Boat Kit A hands on educational kit that combines wood, PP, metal, and foam into a compact, easy to assemble model for teaching renewable energy and basic engineering principles. The kit demonstrates how sunlight becomes usable electrical power and how simple propulsion systems produce controlled movement on water. Key benefits Practical STEM learning: Teaches renewable energy concepts, basic electronics, and mechanical assembly through a single, tangible project. Battery operation: A solar panel converts sunlight directly into electricity to power the motor, removing the need for batteries and simplifying long term use. Versatile propulsion: Two interchangeable propellers provide a double mode propeller system that allows forward and reverse movement for experiments in navigation and control. Stable on water: A density foam hull ensures reliable flotation and stable performance while supporting electronic components for consistent power conversion. Durable mixed materials: Wood, PP, metal, and foam construction balances realism, durability, and lightweight buoyancy for repeated classroom or hobby use. Compact and portable: Small footprint makes the kit suitable for classroom tables, lab benches, and field testing at ponds or pools. What it does and how it solves problems Demonstrates solar energy conversion by powering a motor directly from a solar panel, giving a clear, hands on example of clean energy generation without relying on batteries. Provides a controlled platform to explore propulsion, torque, and hydrodynamics using two interchangeable propellers, so students can test cause and effect and refine designs. Uses a buoyant foam base to protect electronics and maintain flotation, preventing frequent waterrelated failures and reducing maintenance between lessons. Important attributes Function: Educational solar powered model boat with interchangeable propeller modes for forward and reverse movement. Materials: Wood, PP (polypropylene), metal components, and density foam hull for flotation and component support. Size: Compact form factor for easy handling, transport, and classroom storage. Performance: Stable water performance, reliable solar to motor power conversion in sunlight, and simple mechanical control via propeller selection. Compatibility: Designed for hands on STEM activities in classrooms, makerspaces, science labs, and hobby workshops. Suitable for testing in small bodies of water such as pools, ponds, and calm streams. Use scenarios Classroom lesson: Students assemble the kit to learn concepts of solar energy, circuits, and propulsion, then run controlled tests comparing propeller configurations and light intensity. Outdoor demonstration: Bring the compact boat to a pond or pool for live demonstrations of solar powered motion and to measure run times under different lighting conditions. Science fair or project work: Build and present experiments that vary propeller type, motor load, or solar exposure to show cause and effect and development of engineering solutions. What makes it stand out Integrates multiple materials to deliver a realistic, durable, and buoyant educational model. Dual propeller modes offer more experimental flexibility than single mode kits, enabling richer lessons in navigation and design tradeoffs. Solar powered design provides a direct, observable demonstration of energy conversion while eliminating the need for disposable batteries. This kit is intended for educational and hobby use where hands on exploration of renewable energy and basic engineering principles is the primary goal.