Simple machines in our #school garden @CampbellAPS #3rdgrade @APSscience #forceloadfulcrum

By @CampbellAPS | February 18, 2016

simple-machines-in-our-school-garden-campbellaps-3rdgrade-apsscience-forceloadfulcrum-httpst-coubatkgsfdd 

Simple machines in our #school garden @CampbellAPS #3rdgrade @APSscience #forceloadfulcrum https://t.co/UbATKgsfDd

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