With school we have read a few books on earth day from the library, worked in our garden, created an earth day booklet and did an earth art project. The earth art project is very cool - you take a photo copy of an earth coloring sheet and tape down. Then lay a piece of clear contact paper sticky side up over the earth color sheet, tape down. Using blue and green tissue paper fill in the earth, as if coloring with tissue paper. When completed cover the earth shape with another piece of contact paper sticky side down and seal up well. Then trim out your earth and you have a fantastic window art piece!