Experiments and demonstrations with household items teach the principles of weather. See fun and easy ways to make a barometer, measure dew point temperature, make a cloud, or even make a tornado in a bottle. Viewers learn how heat, moisture, and air interact in our atmosphere. All examples can be repeated at school or home, and some may require adult supervision. Additional demonstrations are presented in written material. Hosted by Alan Sealls, a meteorologist, this video shows that the forces of weather surround us. Students learn how to set up experiments to test theories.