A Galileo thermometer is a sealed glass tube consisting of water and colored glass spheres filled with liquid and connected to metal tags. Each glass sphere and metal tag possesses a different density and represents a ce... More »

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The base of a Galileo thermometer is filled with regular water. The colored orbs inside of the thermometer are glass bubbles filled with colored water. More »

Amazon, Walmart, and Bed, Bath & Beyond sell oven thermometers. Some models have dials, while others are digital. Thermometers can stand, hang or clip to the oven, though certain styles allow all three variations. More »

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To read a thermometer, keep the thermometer in a vertical position so the liquid in the tube is upright. Keep eyes level with the top of the liquid in the tube. Avoid over-handling the thermometer as heat from another ob... More »

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Calibrate a thermometer by filling a container with finely crushed ice and water, stirring the mixture and immersing the stem of the thermometer at least 2 inches into the water without touching the sides or bottom of th... More »

The base of a Galileo thermometer is filled with regular water. The colored orbs inside of the thermometer are glass bubbles filled with colored water. More »

The tube of the manometer is partially filled with mercury or water which settles in the bottom of the u-shaped tube, before the atmosphere being measured is allowed to enter the open end of the tube and move against the... More »

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