Education World: Over 25 Earth Day Lesson Ideas!
Scholastic Inc.: SmartBoard Earth Day Lessons for Teachers
TeachersFirst: Editor's Choices for Earth Day
Internet 4 Classrooms: Free Earth Day Printables & Activities
Teacher Vision: Huge Cross-Curricular List of Earth Day Printables, Lessons, and Activities.
National Geographic Education: Earth Day Activities
Sharemylesson: Earth Day lessons and ideas shared by teachers for teachers. Have an idea you want to share? You found the right place!
Songs for Teachers.com: Free Earth Day songs and Poems!
PBS Teachers: Free Earth Day Actvity Pac - Click "Grab It" in the lower right hand corner to access your free kit!
Green Living About.com:
Basic facts and Ideas for Earth Day.
ABCTeach.com: Writing Prompts, word puzzles & more!
Classroom Freebies: Earth Day Writing Activities
A Modern Teacher: Earth Day Writing Prompts
JournalBuddies.com: 53 Meaningful Writing Prompts
EduPlace.com: Earth Day Writing Prompts
HaveFunTeaching: Earth Day Activities