Weather:
The term weather means the state of the atmosphere at a particular place at a particular time. It includes the information regarding temperature, air pressure, condition of the sky, humidity precipitation etc.
Climate:
The climate is the average atmospheric conditions of an area over a considerable period of time.
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Meteorology:
The scientific study of weather condition is called meteorology. Weather forecast can be made with the help meteorology.
Temperature:
The magnitude of heat or the measurement”‘ heat is called temperature.
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Thermometer:
The temperature of a body is measured with the help of a thermometer. A thermometer is generally a narrow glass tube filled with a liquid. The most commonly used liquids are mercury and alcohol.
Types of thermometers
Mainly two scales are used for the measurement of the temperature-the Celsius and Fahrenheit scales. Six’s maximum and minimum thermometer is used to measure the maximum and minimum temperatures during day and night.
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Barometer:
Barometeris an instrument with the help of which the atmospheric pressure is measured.
Millibar:
Millibar is a unit of atmospheric pressure. A pressure of 1,000 millibars is equivalent to 75 cm of mercury column.
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Wind vane:
An instrument used in recording the direction of the wind is called a wind vane.
Anemometer:
An anemometer is an instrument which is used to measure the speed of wind.
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Humidity:
The humidity of air is a measure of the amount of water vapors present in the air.
Hygrometer:
Hygrometer is an instrument with the help of which the humidity of the atmosphere is measured.
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Rain-gauge:
An instrument which is used for measuring rainfall.
Important Questions
1. What is barograph ?
Ans. Meteorologists usually use an instrument to monitor pressure which is called barograph.
2. Who are meteorologists ?
Ans. The scientists who study weather and collect data’s for Weather information are called meteorologists.
3. What is the approx. atmospheric pressure at sea level ?
Ans. 1,013.2 millibar.
4. Which is the most commonly used barometer ?
Ans. Aneroid barometer.
5. What is Pluviograph ?
Ans. A self-recording instrument called pluviograph which is used in measuring rainfall