Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

Did you know that insects like dragonflies have life cycles that are very similar to our own? Help your little scientist get to know the circle of life.

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.

What is wind energy? Teach your students how we can use the wind to create electricity!

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.

Understand nature's visual cues for the shifting of the seasons with this tree seasons match-up activity!

Tree climbers and tree huggers alike, learn the basics of reading tree rings to find out about the life of a tree.

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.

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

Blast off into space with a fun planet printable. This one features Jupiter, the largest planet in our solar system.

Brrr, it's cold outside! In this worksheet, kids practice reading thermometers to figure out what the temperature is.

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.

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?

Discover the inner workings of basic earth science in this worksheet on temperature.

Rain or shine, get ready for some weather watching! Record data to observe the weather patterns over the course of a week.

Here are four examples of mineral resources for kids to think about, plus a short explanation of what a mineral resource is.

Learn some new words and facts about precious minerals with this word-scramble and matching worksheet.

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

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.

Did you know that trees have more parts than just the trunk, branches and leaves? Take a look on the inside of a tree with this fill-in-the-blank diagram!

This tree anatomy worksheet will give your little naturalist a better understanding of the parts that make up a tree.

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

This research, drawing, and writing worksheet is a fun introduction to informational and science writing.

These "Dig It!" worksheets not only teach about life on earth, they teach the scientific method as well.

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.

As your child completes this science worksheet on the life cycle of a peanut, he'll get the chance to practice his sequencing, labeling, and drawing skills.

When spring is in full bloom, be sure to get outside to smell the flowers! Your little nature lover can have fun with this flower identification activity.