http://www.epa.gov/region5/publications/happy/happy.htm
-Happy Earth Day Coloring and Activities Book is an 11-page coloring book full of tips for making the Earth a better place. (FREE!)
http://www.planetpals.com/earthday.html
-Lessons and activities
http://www.dltk-kids.com/crafts/earth.html
-Songs and a rainforest poem.
http://www.edhelper.com/EarthDay.htm
-Math worksheets, word searches, vowels worksheet and additional websites.
http://www.squiglysplayhouse.com/Holidays/EarthDay.html
-A few online games and worksheets.
http://abcteach.com/directory/theme_units/month_to_month/d_april/earth_day/
-Printables
http://www.atozteacherstuff.com/themes/environment.shtml
-Lessons by grade level.
http://www.planetpals.com/earthdayideas.html
-This site offers many activities and projects.
http://www.preschooleducation.com/searth.shtml
-Many great Earth Day songs!
http://www.perpetualpreschool.com/holiday_themes/earth_day.htm
-Songs, snacks, art, science and games.
http://www.first-school.ws/theme/h_earth-day.htm
-Earth Day educational activities for preschool and kindergarten. You will find free printable crafts and activities with easy to follow instructions, and related resources.
http://www.theteachersguide.com/earthdaylessonplans.htm
-There are many great things at this site including lessons for The Lorax by Dr. Seuss
http://www.education-world.com/a_lesson/lesson059.shtml
-Earth Day activities
http://www.ecokidsonline.com/pub/fun_n_games/index.cfm
-Games, activities, printable pages and information about wildlife, science and nature, energy and environmental issues.
http://www.unitedstreaming.com
-There is a good video on this site: "Holiday Facts and Fun: Earth Day"