Air Pressure

Read a barometer: falling pressure usually brings storms, rising pressure fair weather.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 32

Air may feel like nothing, but it has weight. All the air above you presses down. That push is called air pressure.
A barometer measures air pressure in inches. The numbers usually stay near 30. Small changes matter!
When the pressure is falling, clouds and storms are usually on the way. Here, the needle has dropped below the gold marker.
When the pressure is rising, fair weather usually follows. Here, the needle has climbed above the gold marker.
On weather maps, a big H marks high pressure, usually with clear skies. A big L marks low pressure, usually with clouds and rain.

Georgia Standards of Excellence in Science:

S4E4.a — Construct an explanation of how weather instruments (thermometer, rain gauge, barometer, wind vane, and anemometer) are used in gathering weather data and making forecasts.
S4E4.b — Interpret data from weather maps, including fronts (warm, cold, and stationary), temperature, pressure, and precipitation to make an informed prediction about tomorrow's weather.