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Monday, March 14, 2016

Moving Milk

Yesterday and today we looked at surface tension. First we counted how many drops of water we could fit on a coin. The water looked like a dome on top of the coin. Then we tried to get a paperclip to float on the surface of water. Some of us got five or six to float at once.

Our next experiment showed how surface tension can be broken by adding detergent to milk with drops of dye. The milk made swirly patterns when the detergent touched the milk. 

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