Uploaded February 2009 | Updated September 2026, 2 days ago

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Part 1 of 7 parts, instructions for building an overhead water rocket launcher, as seen on the Ask This Old House annual kids program. youtu.be/jJPZAH5Izt8
Companion web page with links to all 7 steps bit.ly/2MU4R33
Other science toy projects are at sciencetoymaker.org
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