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.

Grain, dairy, meat, or vegetable? Teach your kids about the food groups with a Thanksgiving-themed cut-and-paste sorting activity.

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

The California condor has been brought back from the brink of extinction. This worksheet will help your little bird lover learn all about the condor.

How do you know when it's wintertime? Have your child complete this winter writing prompt to exercise writing skills and reinforce seasonal knowledge.

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.

In this introductory tree-diagramming worksheet, young naturalists will unscramble each label to reveal five parts of the tree.

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

Don't let school year learning slip away this summer: use this chemistry worksheet to practice identifying elements.

This Earth Day, learn about conservation and the environment while you enjoy solving a fun puzzle! 

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

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.

How do you make recycled paper? Learn all about the recycling paper process on this informative worksheet.

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.

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 holiday season is here! Bring this cool snowman to life by coloring him according to the color chart.

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.

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this 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?

These printable Valentine's Day cards are perfect for a kid who's in love with animals and science!

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

These Valentine's Day cards will be the oddest and most unique cards your sweetie ever got!

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.