Monday, April 9, 2012

Microscopes: Water Drop Microscope


Originally posted on March 3, 2010

Cut a 1” square out of the center of an index card (the shape and size are not important, you can decide how accurate you want students to be). Place a small piece of plastic wrap over the cut-out area and tape it so it’s taut. Place a drop of water on the plastic – you want it to maintain it’s drop shape, not spread out. Look through the water drop at some small writing, newspaper pictures, etc. The curve of the water drop will magnify what you are looking at, creating a very simple microscope.

I like to have students complete this activity after they complete their microscope quiz. I give out extra credit for anyone who takes their microscope home, shows their parents and has their parents write a note letting me know what they shared.

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