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 »

Liquid thermometers contain either mercury, alcohol or mineral spirits. Mercury thermometers, which are not widely used any longer as of 2015 due to the toxic nature of the element, have a silver liquid in them. Alcohol ... More »

The red liquid inside of a thermometer is alcohol. When the temperature changes, the alcohol expands, providing a reading based on the thermometer's scale. Red dye is used to color the clear alcohol so that someone is ab... More »

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 » Science Measurements

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 » Science Measurements

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 »

Eight standard glasses of water are equivalent to nearly two liters of liquid. Generally, the size of a standard glass of water is 8 ounces. A liter is 33.814 fluid ounces. More »