Great activity for Earth Day.Shows how chemistry can be used to understand what is happening with Global warming.Funny and informative videos from NPR.Class: Chemistry or any class where you have discussed valence electronsTime: 30-45 minIncluded: Teacher guide with questions you can ask students, student worksheet with video links, and worksheet answer keyUse this lesson to introduce your students to environmental chemistry. It's All About Carbon from NPR and the worksheet I created review conc