This activity (on page 2 of the PDF) is a full inquiry investigation into sound frequency. Groups of learners will use an electronic keyboard (if one is available) to identify which note on the musical scale is made by a cardboard or PVC tube dropped onto a hard surface. Learners continue to cut tubes to the right lengths to make the notes of the Do-Re-Mi scale and then lay their tubes into a frequency graph. Relates to linked video, DragonflyTV GPS: Music and Sound.
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