Earth Day--Hooray! (MathStart 3)
The Three R's: Reuse, Reduce, Recycle (What Do You Know About? Books)
It's Earth Day! (Little Critter)
Biscuit's Earth Day Celebration
Fancy Nancy: Every Day Is Earth Day (I Can Read Level 1)
The Adventures of a Plastic Bottle: A Story About Recycling (Little Green Books)
I Can Save the Earth!: One Little Monster Learns to Reduce, Reuse, and Recycle (Little Green Books)
How to Help the Earth-by the Lorax (Dr. Seuss) (Step into Reading)
Stuff!: Reduce, Reuse, Recycle