Air pressure - measures the force with which air molecules push on a surface, Wind - a movement of air caused by differences in air pressure, Visibility - the distance at which objects can be seen with the unaided eye, Thermometers - measure temperature, Humidity - measured with a psychrometer, Precipitation - measured by capturing the precipitation in a gauge, barometer - measures air pressure, Windstock - measures air direction, Anemometers - measure wind speed, Wind direction - measured with a wind vane or windsock,

6th Grade Science R3

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