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For this project, we need two pieces of clear glass or plastic, the size of the "slides" used for a microscope. We'll wet one side of one piece of glass, just enough to spread a film of water on it. Next, we lay the other piece of glass on top of the wet one, and put a rubber band around one end of the glass sandwich.
We have some tagboard, and we'll put some into the sandwich on the end without the rubber band, so that the glass pieces are no more than 1/32" apart. This now will be placed into a saucer of water, and, after checking the time, we will watch it to see what happens.
Look at that! The water is going up into the sandwich! It looks funny, because since the glass pieces are closer together on the rubber band end, the water is rising more on one side than on the other. Capillary action does some weird things, doesn't it!
it with some other liquids and see if it does anything different. We want
to use a grease pencil to mark the place to which the water rose, so we
can tell if other
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