Inspiration
This was a low prep time week drawn from what I had on hand and a dose of School House Rock.
Materials
Various balls of similar size and shape with a wide variety of densities.
Someplace modestly high to drop them from.
Postage scale for some instrumentation and data collection
Camera for catching the action.
Notes
As with many quickly improvised sessions that are not so flashy visually, I tended to double up on the discussion portion. We were very methodical about measuring each one recording them in a spreadsheet from 7 grams for the wiffle golf ball through 137 grams for the solid steel D20. The girls dropped them from the play house in pairs as I snapped pictures. We were able to detect slight differences in the most extreme cases from air resistance usually dwarfed by drop timing variance.
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