Have you ever seen a willow or a walnut tree? These big trees have very differently shaped leaves. Can you match each leaf with its correct tree?

Teach your child how to respect the ecosystem with a science worksheet that doubles as a coloring page. Can they identify the sources of pollution in the scene?

Did you know you can identify a tree by its leaves? Discover the different shapes and shades of maple and oak leaves as you match each one to the correct tree.

The silverback gorilla is a special animal. This magnificent male is part of an endangered species. Complete this sheet to learn all about this gentle giant.

Shape up your knowledge of living things with this plant sorting soirÃe! Your kid will build observational skills by describing the attributes of each plant.

The horned lizard has a scary exterior but a gentle personality. Your little student can learn about this North American lizard with this worksheet.

Color in the gold and red colors of this common grasshopper species and learn about insect orders with your child!

Let's talk about trees! Help your child use Earth Day as an excuse to praise the woody perennials that hardly ever get the recognition they deserve.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

Get in tune with nature, and read a bit about an endangered species of animal, the Black-footed Ferret. Your child can color an illustration as he reads.

Learn to pay close attention to detail with this close-up observation worksheet!

Can you figure out how to match each leaf to its correct tree? Just cut out the leaves, glue them to the trees and then pick your favorite!

Not all leaves are shaped the same. Discover the difference between palm and elm leaves as you match each leaf to its tree. Which leaf shape is your favorite?

Help your child understand why it's so important to take care of the environment with this info-sheet about an endangered species: the spectacled bear.

Believe it or not, pine trees and ginko trees have different shaped leaves. See the shapes for yourself and match each leaf to its correct tree.