These pictures have a lot to say! The animals in this worksheet don't talkÃbut they can tell you a lot about what they're like by the way they look.

Both of these animals have big ears! Your child will look at the pictures of unusual animals in this worksheet and try to learn some new things about them.

Have you considered why elephants have trunks, or why polar bears have thick fur? Reflect on animal adaptations with this fourth-grade worksheet!

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Have you ever heard of a bird building a structure of sticks and leaves in order to attract mates? You have now.

These cute critters have gotten their tails all mixed up! Have your little one help put them all back in place.

Practice your child's science skills with this fun worksheet, which will help your child determine which animals have feathers, and which have fins.

Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

You have a lot in common with all the other humans on this planet. You all have noses and arms and fingernails, but what makes you different?

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?

Why do some desert animals have large ears? Why do others have scales? Learn the answers to these questions and more with this life science worksheet!

Have fun learning about food chains in this charming science worksheet!

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!

Explore the impact invasive species have on the environment with this research-based graphic organizer!

Learn the scientific name for jellyfish then have a ball coloring in the pictures of these graceful creatures!

Does your child have a knack for astronomy? Teach him about the constellations with this great worksheet.

If you know what each planet looks like, you'll have no trouble with this intergalactic crossword puzzle.

Even colors have best friends. In the world of color, these best friend pairings are called complimentary colors.

Plants may not have feet, but they do move! Help your child learn different ways seeds travel.

Humans have 32 teeth, including wisdom teeth, and this diagram has the names of all the other 28.

Through a simple matching activity, kids learn how their actions can have a direct effect on the environment.

Stretch your backbones and learn about the creatures that have a spine and those you don't!

Ever wonder why zebras have so many stripes? Find out with this fun worksheet all about the zebra!

Have you ever heard of the chapparal ecosystem? Learn all about this dry, Mediterranean ecosystem with this fun sheet!

Be a busy bee as you learn all about the different jobs honey bees have in their hives!

Little zookeepers can have some fun placing these animals in the right spot--do they fly, swim or crawl?

Every living thing needs a home to survive! Many animals have unique and interesting ways of building their homes.

If Dorothy had lived a little further south, she might have been swept away to Oz by a hurricane.

How many legs does an insect have? Get ready for some creepy crawly counting with this colorful bug collection!

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?