How Galileo thermometer work?

Answer:
there are little glass bubbles filled with a colored liquid, usually food coloring and water oe coloured ethenol. each little bubble has a weight attached with the temperature engraved into it. all these bubbles are about the same density as water, and as the temperature changes, the bubbles float and sink. the bubble that sinks to the bottom is the current temperature.
First answer by ID3628679257. Last edit by Pishposh. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 3 [recommend question].