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People usually describe the temperature as hot or cold. The real definition of temperature is the measure of the average speed of air molecules. Temperature is measured in degrees by using a thermometer. They are rea d in the shade because their measurements are too high when placed in direct sunlight. Even though temperature changes … Continue reading

Atmospheric Pressure

At sea level, the atmosphere exerts pressure on Earth at a force of 14.7 pounds per square inch. Courtesy of the FAA Pressure is an idea scientists use to describe how gases and liquids “push” on things. The atmosphere has pressure. If you imagine a column of air that is 1 inch square and goes … Continue reading

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