Open the links below and explore some interactive 
Earth Day activities:
The Great Garbage Caper
http://www.ecokids.ca/pub/games_activities/waste/garbagecaper/index.cfm
The Great Frog Dilemma
http://www.ecokids.ca/pub/games_activities/wildlife/greatfrogdilemma/index.cfm
Battery Quiz
http://www.ecokids.ca/pub/eco_info/topics/batteries/family-quiz.cfm
Sam's Vacation
http://www.ecokids.ca/pub/games_activities/land_use/samsvacation/index.cfm