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Temperature: It is a degree of hotness and coldness of an object.
Thermometer: It is the device used to measure the temperature.
Kink: A kink prevents mercury from falling down on its own.
Conduction: The process of transfer to heat when two objects are in contact with each other is called conduction. Example: Transfer of heat from burner to frying pan.
Convection: The process of transfer of heat via air or water is called convection. Example: transfer of heat from burning wood to our hands.
Radiation: The process of transfer of heat that do not require any medium is called radiation. Example: transfer of heat from sun to earth.
Conductor: The material that allows heat to pass through them is called conductor. Example: iron, aluminum and copper.
Insulator: The material that do not allow the heat to pass through them is called insulator. Example: wood, paper and plastic.
Sea breeze: During the day, the land gets heated faster than water, thus the air on the land rises above and the cold air above sea move towards land. This process is called sea breeze.
Land breeze: During the night, the land cools down faster than water, thus the air on the sea rises above and the cold air above the land move towards sea. This process is called land breeze.
There are two types of thermometer:
1. Clinical thermometer: This thermometer is used to measure the body temperature. It ranges from 350C to 420C. The clinical thermometer has a long tube that contains mercury. Nowadays, digital thermometer are also used and they are safer than mercury thermometer.
2. Laboratory thermometer: This thermometer is used in the lab. It is bigger than clinical thermometer. It ranges from -100C to 1100C.
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