Part2: Build Your Own Planet

A clear plastic two liter pop bottle. 2 small thermometers. A ring stand. A small lamp with a floodlight or 100W light bulb. A newspaper, magazine or several sheets of paper. Step 1: Cut off the top of the plastic bottle at the top of the label. Remove the labels. Step 2: Place the thermometers in a refrigerator for at least 5 minutes (longer ... ................
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