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This is part 2 of a 6 part hands-on unit on inventions and simple machines. Build and test catapults, lift an adult using a lever, test out screws of various threads, and more! Thee lessons are geared toward 3rd-4th grade level children and their siblings. Use these fun lessons with your classroom, family, or co-op!
This 11 year old has 3 cool inventions to his name-- the most recent is a sandless reusable sandbag for hurricanes. My favorite invention of his is a training bike with retractable safety wheels, so kids can push a button on their handlebar to lower the safety wheels if they feel like they're going to fall. For that invention see 3:45 ish on the video: www.ellentv.com/...