Pennies and Water

We walked through the steps of the Scientific Method the past two days by conducting an experiment and writing up a lab report.

Our Question: How many drops of water can a penny hold?

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Everyone was amazed by the “bubble” of water that formed on the top of the penny! How cool is that!?!? 

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With 13 groups, we had a range of 13 – 47 drops of water that fit on the penny. Our class average was 25.5 drops of water. Who knew a penny could hold that much water!? Do you know why that “bubble” forms on the penny?

I wonder what would happen with a different liquid? Or a different coin? How many drops do you think a quarter would hold? How about a dime?

Photos by our class photographer, Gia (didn’t she do a great job?)

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