Education World: Earth Day
- More than a dozen articles offer activities and ideas for kindergarten through high school.
- http://www.educationworld.com/holidays/archives/earthday.shtml

Earth Day Worksheets and Puzzles
- Earth day logic, math, word searches, crosswords, spelling, and vocabulary worksheets.
- http://www.edhelper.com/EarthDay.htm

Easy Earth-Friendly Actions
- Simples ways that teachers can help their students celebrate.
- http://k-6educators.about.com/education/k-6educators/library/weekly/aa033100a.htm

Earth Day Theme Unit
- Offers group activities and printables for kindergarten through sixth grade.
- http://www.abcteach.com/earthday/earthtoc.htm

Teachers.Net: Earth Day/Ecological Projects
- Bulletin allows teachers to share their ideas or browse through suggestions posted by their peers.
- http://teachers.net/projects/earthday/

The Earth Day Groceries Project
- Describes environmental awareness project in which students decorate paper grocery bags with environmental messages for Earth Day. Includes FAQ, free starter kit and project ideas, collection of school reports, and photographs.
- http://www.earthdaybags.org/