What's Your Pressure?

WHY?

You'll see the tip of the straw move as the atmospheric pressure changes. When a storm comes through, the pressure in the jar will be a little higher than the pressure outside. The balloon will swell out a little and the pointer will point to a lower number on your ruler.

ASSESSMENT: Can the student communicate what they observed?

question_guy

two student is able to communicate that as the air becomes thicker, the pressure is greater and the air becomes thinner, the pressure is less. Greater pressure is a "High" and less pressure is a "low". Low pressure indicates stormy weather. High pressure indicates fair weather. A barometer measures air pressure.

two student is able to communicate that the air around us can become thick or thin. This is called air pressure. Ar pressure can be high or low.

two student is able to communicate that air is thick or thin.

two student is able to communicate that air pressure is measured by using a barometer.

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Last modified: Sun Aug 10 18:00:59 PDT 1997