Air Pressure Basics

Laura P. Dickey

Stamford Public Schools

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

Using ActiVotes for Pre-test

Setting up barometers

What happened with the barometers?

What caused the balloon to rise and shrink?

What causes air pressure?

Student A:“The temperature helped increase and decrease the pressure inside the jar.”

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.”