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.

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

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

Dip your toes into a marsh habitat in this second- and third-grade worksheet!

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.

Explore the lush plant life of the tropical rainforest in this second- and third-grade worksheet!

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!

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

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.

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 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.

Practice identifying living and nonliving things with this first- and second-grade science worksheet!

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.

For each item on this first grade science worksheet, kids match a piece of clothing with the thermometer showing a temperature for wearing the item of clothing.