Use this as a basis to compile sample activities to do with students to conserve the Earth, these include: plant a tree, recycle, turn off the lights, and clean up trash. The others are good ideas to simply introduce the students to.
Grades through can enjoy this art lesson. Math is integrated with this lesson through shapes and reflections, students can use their imaginations and math skills to make a fun art picture which consists of shapes and colors. Also shows reflection!