Today we had a cool science lab in which we guessed and experimented with how many drops of water could fit on the surface of a penny? Students guessed 3, 4, 5, 8, 11, 18, 30, etc. When we actually did it, most were surprised to find out that the penny holds over 20 drops of water! We realized that the water seemed to "stick" together and form a dome on the penny, which is a property of water called surface tension. We next dropped soapy and salty water onto the dome to see if either of those would affect surface tension. Which one do you think did?!
2 comments:
That Science progect was cool my group got 26 drops.
My group got 24 drops!!!:]
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