{ "item_title" : "The Ultimate Cardboard Machine Lab For Kids", "item_author" : [" Frazer Watson "], "item_description" : "Turn ordinary cardboard into machines that roll, lift, walk, wave, launch, grip, draw, and move The Ultimate Cardboard Machine Lab for Kids gives young makers ages 8 to 12 a complete hands-on engineering workshop with 25 buildable projects, from a spinning picture wheel and hand-crank lift to moving robots, arcade games, a hydraulic arm, a chain-reaction machine, and a working cardboard factory. Clear project guidance helps children explore wheels and axles, gears, cams, cranks, pulleys, belts, linkages, hydraulics, friction, force, balance, and structural strength. Each build encourages careful measuring, safe tool habits, testing, troubleshooting, and purposeful redesign. Instead of treating the first attempt as the final answer, young engineers learn to observe what happened, change one feature, and test again. Inside, readers will find: * 25 moving machines, robots, games, and engineering challenges* Full-colour project photographs and visual build guidance* Practical introductions to mechanisms, force, motion, and energy* Test targets and improvement challenges for every project* Safety reminders and clear adult-supervision cues* Troubleshooting guidance and an independent invention challenge Ideal for curious kids, families, classrooms, clubs, and makerspaces, this book turns reused cardboard and common craft supplies into a creative laboratory where every build becomes a chance to think like an engineer.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/9/79/816/073/9798160735115_b.jpg", "price_data" : { "retail_price" : "23.99", "online_price" : "23.99", "our_price" : "23.99", "club_price" : "23.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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