We are learning about matter - solids, liquids, and gases. We are also learning about the scientific method, and becoming very serious scientists. This week we did an experiment called "Drop by Drop." Our problem was to determine how many drops of water could be held on the surface of a penny, before spilling over. We hypothesized, then gathered data. We found out, to our surprise, that a penny could hold over 20 drops of water! We learned that the liquid spread over the surface of the penny, but the molecules tried to hold tight, so the water kept building up on top. The water built up like a dome! Try it at home. All you need is an eye dropper, some water, and a penny.
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