1. Air Pressure Basics
Laura P. Dickey
Stamford Public Schools

2. Lesson Objective:
•Students will describe how a barometer works.
•Students will state the relationship between temperature
and pressure
CT Standard:
• Explain how changes in temperature, pressure,
moisture and density of air create weather.
Barometer Basics

3. Using ActiVotes for Pre-test

4. Setting up barometers

5. What happened with
the barometers?
What caused the
balloon to rise and
shrink?

6. What causes air
pressure?
Student A:
“The temperature helped increase
and decrease the pressure inside
the jar.”

7. Showing evidence of the
barometer change
Student B “Cold air will have a
heavier air mass than hot air.”
Student C “In the jars under the
lamps the balloons are rising.”