Build an Overhead Water Rocket Launcher Part 6 assurance spring

Part 6 of 7 parts, instructions for building an overhead water rocket launcher, as seen on the Ask This Old House annual kids program. Links to all 7 steps, as well as other science toy projects are at www.sciencetoymaker.org



http://www.youtube.com/watch?v=0KReX192pbc&hl=en

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