4M Green Science Hybrid Solar Water Pump Kit for Kids Ages 5-12 – STEM Experiment with Solar or Battery Power, DIY Renewable Energy Toy, Educational Science Gift

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• ☀️🔋 SOLAR OR BATTERY POWER → FOR AGES 5-12: This pump works on solar power when the sun is shining and switches to a standard AAA battery (not included) on cloudy days or indoors . Continuous learning and fun, rain or shine!
• 💧 WATCH THE FIGURE PUMP REAL WATER: As the motor runs, the blue figure comes alive, pumping water from one container to another . A fascinating demonstration of renewable energy and mechanical action in real time.
• ⚙️ HANDS-ON STEM & STEAM LEARNING: Build the pump yourself with over 25 components: solar panel, motor, gearbox, battery module, cylinder, piston, and figure parts . Sparks curiosity in engineering, renewable energy, and environmental science .
• 🔄 LEARN ABOUT ENERGY TRANSFORMATION: Discover how sunlight (photons) becomes electricity via the solar cell, or how chemical energy from a battery powers the motor . Understand the principle of gear reduction that converts fast motor spin into powerful pumping action.
• 🎁 PERFECT ECO-FRIENDLY GIFT: Ideal for birthdays, homeschool science, or Earth Day projects. Inspires the next generation of inventors with sustainable, screen-free fun. Adult supervision recommended for assembly