Or download our app "Guided Lessons by Education.com" on your device's app store.
How to Make A Thermometer
Thermometers tell us important information, like whether we should bring a parka or swimsuit when we go on vacation! There are two well known temperature scales: Fahrenheit (F for short) and Celsius (C for short). Most people in the United States use the Fahrenheit scale; scientists and the rest of the world use the Celsius scale. The same number means very different things in the two scales. For instance, a comfortable room is 22 degrees in Celsius, but if a room was 22 degrees Fahrenheit, it would be below freezing and your fingers would be frostbitten in no time.
Temperature scales are pretty cool, but it's more fun to investigate how thermometers actually measure temperature changes. The key component is the liquid inside that moves up and down to indicate different numbers. What causes the liquid to move up and down? How do scientists choose what liquid to put inside?
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.