This is a cute idea to adapt for an art project with an Earth Day theme. Give each student a square with a quarter circle on it for them to do their drawings. Glue your students' drawings together to form "Earth Circles" and create a colorful Earth Day bulletin board display.
"We've Got the Whole World In Our Hands" is a lovely title for an Earth Day bulletin board display. The globe in the center is made from student handprints. The teacher typed up phrases such as: "We can pick up trash. We can plant trees and flowers. We can turn off lights when we aren't in the room." and placed these phrases around the Earth.