Label the parts of a tree with this simple science worksheet!

Little scientists can learn about a fundamental concept of physical science with this worksheet all about density!

Find out all about the different parts of the eyes and how they work together to make vision possible.

All living things have a life cycle. Learn about the different stages that a bird goes through from birth to adulthood!

All living things go through cycles. Learn about the life cycle of an amphibian with this diagram of the life of a frog!

Fact: This worksheet is about unusual animals from all over the world. Opinion: This is the best fact and opinion worksheet ever!

All of these products are made from plants, or they can be! Practice using a Venn diagram, researching and classifying items with your kids.

All living things go through many changes as they grow to be adults! Help your little one understand how he will grow and change.

Without reflective surfaces, this biker would have a much more dangerous ride. Can you find all five reflective surfaces present in this scene?

Did you know that there is no new water on Earth? It all gets recycled and reused in a process that we call the water cycle.

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

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.

Did you know that baby turtles are born all alone on the beach? Learn about the life cycle of a turtle with this life science worksheet.

What's your favorite animal? Kids love answering that question, and with this animal research graphic organizer, they can write all about it.

Next time you're outside, go on a treasure hunt with this activity from PBS KIDS' Dinsosaur Train. Then, write all about your nature treasure loot!

Help your child improve his handwriting skills with this printable worksheet, which is all about the four seasons.

Looking for a way to teach your kids all about the planets? This worksheet is the way to go. It features Venus, the second planet from the sun.

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.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

The animal names on this third grade science and spelling worksheet are all mixed up! Kids unscramble reptile and bird names to complete the 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.

All kids love animals, but how much does your child know about them? Kids will get to learn some animal vocabulary with this wild crossword puzzle.

Did you know that one of the main ingredients of a perfect pearl is dust? Learn all about the bizarre process behind every pearl with this science worksheet.

Have you ever looked into the night sky and wondered where all those millions and million of stars come from? Find out here with a mini astronomy lesson!

Here is a fresh and fruity way to learn a bit of life science. Sit down with your little one and teach them all the different parts of an apple!

Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

Mammals come in all shapes and sizes - as big as a human or as small as a mouse! Learn about the life cycle of a mouse with this cut and paste activity.

Just like all plants and animals, you go through different stages in life too! Help your child to see how he will change and grow throughout his life.

Ever lay on your back to look at the clouds? Now you'll know which types of cloud make up all those silly shapes you see with this diagram.

This short nonfiction text will provide students with an opportunity to become more comfortable with identifying and defining academic vocabulary words—and they'll have fun learning all about the life cycle of a chicken in the process!