How To Read A Thermometer

The video tutorial introduces thermometers, explaining their purpose and how to read them. It covers the materials needed for a demonstration, including hot and cold water, and a thermometer. The tutorial explains temperature units such as Fahrenheit, Celsius, and Kelvin. It demonstrates how a thermometer with red liquid works, showing how the liquid rises or falls with temperature changes. The video concludes with instructions on reading the thermometer, focusing on the gradations and numeric values.

What is the primary function of a thermometer?

• To measure humidity

• To measure pressure

• To measure temperature

• To measure wind speed

Which unit of temperature is not preceded by a degree symbol?

• Rankine

• Kelvin

• Celsius

• Fahrenheit

What is the red liquid in the thermometer used for?

• To indicate wind speed

• To measure pressure

• To indicate temperature

• To measure humidity

How many degrees does each graduation on the left side of the thermometer represent?

• 5°

• 10°

• 2°

• 1°

What is the purpose of the bulb at the bottom of the thermometer?

• To act as a temperature sensor

• To hold the thermometer

• To measure humidity

• To display the temperature

What should you do before adding cold water in the demonstration?

• Add hot water first

• Shake the thermometer

• Note the room temperature

• Check the thermometer's calibration

What happens to the red fluid when hot water is added?

• It moves down

• It stays the same

• It moves up

• It evaporates