1. Students can use hands-on activities to investigate how greenhouse gases act in Extension Lesson Modeling Greenhouse Gases found on the MEECS Climate Change Resource DVD.

2. Another option for a video for this lesson features Professor Scott Denning of the Atmospheric Science Department at Colorado State University explaining how greenhouse gases in Earth’s atmosphere warm our planet. The video can be found at http://www.windows2universe.org/earth/climate/greenhouse_gases_scott_denning_movie.html

3. With students working on their own computers or as a class demonstration, go to http://phet.colorado.edu/en/simulation/ greenhouse for the simulation of the Greenhouse Effect. Either download the simulation or use the run now button to begin. You will need to have Java on your computer. Go to the Photon Absorption screen and refer to the Investigating Greenhouse Gases Activity to work through the simulation.