When explaining Earth Day to a young preschooler, your best bet is to keep it simple. Talk about easy, long-term ways your family can take care of the earth as a way to celebrate, and maybe even do something special on that day like taking part of a community clean up.
This free coloring page from educational website ABCmouse.com, is simple, but packs a powerful message. Ask your preschooler to color it and then hang it in your house -- showing your preschooler that you are proud of his work, but to also remind him of how important loving the earth is.
Click to enlarge this printable Earth Day coloring page from ABCmouse.com.
Coloring page courtesy of Age of Learning, Inc. and ABCmouse.com.