Table of Contents
What is the use of thermometer Class 7?
Thermometer is a device which is used to measure temperature. Thermometer is made of a long narrow glass tube, with a bulb at one end. The narrow tube appears as a continuous silver line, because it is filled with mercury.
Why do we need thermometer?
A thermometer is a device used for measuring temperature. A thermometer is an instrument that measures temperature. It can measure the temperature of a solid such as food, a liquid such as water, or a gas such as air. The three most common units of measurement for temperature are Celsius, Fahrenheit, and kelvin.
How are thermometers used in experiments?
Place the end of the thermometer with the reservoir of liquid in the testing medium. For example, if you are testing the temperature of ice water, place the reservoir in the water, below the ice, but not touching the bottom of the flask or cup the water is held in. This will garner a more accurate temperature.
What is the proper way to use a thermometer?
Dial instant-read thermometers cannot stay in the food while cooking. Place the stem about two to two and a half inches deep in the thickest part of the food. Wait 15 to 20 seconds to read the temperature. Used in roasts, casseroles and soups, and inserted sideways in thin dishes.
Which thermometer is best for home use?
The best thermometers you can buy iProven DMT-489. Many infrared thermometers measure temperature on the forehead or in the ear, but not both. Innovo Forehead and Ear. Innovo’s Forehead and Ear thermometer is a fine dual-mode alternative to the iProven. Vicks ComfortFlex. Chooseen Digital Forehead and Ear Thermometer. Kinsa Smart Ear Thermometer. Kinsa QuickCare. Elepho eTherm.
What are the uses of thermometer?
Uses of thermometer. As we established, the main use of thermometer is to measure temperature. You can measure the temperature of many things to get useful information about your surroundings and yourself.
Why do we use a thermometer?
Thermometers are a useful thing to have in your home. You can use one to detect a fever, and people also often use them in cooking in order to determine if a roast is cooked to the proper temperature. You can use a thermometer to check if sugar is being melted or burned and if hot oil is ready for frying foods.