It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

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

This word search is all about owls! Your child will learn a few different species of owl as he looks for them in the word search.

Discover the many different kinds of conifer and deciduous trees as you complete this word search!

Learn about the texture and hardness of different objects in this second-grade worksheet!

What do juice, water, and tea have in common? Compare and contrast matter in this engaging second-grade worksheet!

Budding inventors can get a fun review of the simple machines with this word search.

Here's a fun way for kids to review their knowledge of earth science terms. Challenge your child to give a definition of each word as he finds it.

From the blue whale to the Tasmanian devil, our planet is full of fascinating animals. Find a few of the most interesting ones in this animal word search.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

This word search helps expand kids' animal vocabulary and introduces them to animals that live in shells, all while keeping them entertained.

If your child is fascinated by outer space, he'll love this solar system word search! While reviewing planet names, he'll ponder the mysteries of the universe.

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

This raptors word search is not about dinosaurs, it's about birds! "Raptor" means "bird of prey", and there is a huge list here for your child to find.

Engage your little scientist with a fun word search, all about sinking and floating! He'll be learning a basic concept of physical science.

Count the number of sea creatures and make a bar graph with this shark worksheet. Make an underwater word ladder with your 2nd grader, too.

What makes a reptile different from an amphibian?  Learn all about animal classifications in this worksheet for second and third graders!

Who feels at home scaling a nice, big tree? This word search is a fun way for your little one to familiarize themselves with different tree-climbing animals.

Kids will learn about fossils in this worksheet. Help your child learn about the scientific method by getting him to examine a fossilized dinosaur skeleton.

Break down a word to create new ones with this fun worksheet for second through fifth graders!

Boost your second grader's knowledge of space with this fun worksheet, which will have her unscrambling the answers to planetary trivia.

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

Challenge your science student to record a shadow over the course of a day and make the connection between shadows and the time of day.

Gear up to go into the science lab with the help of this activity!

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

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

In this word scramble, children solve a riddle by identifying which things are made of plants and which are not.

Walter's Duiker is a new species of duiker, a kind of antelope, and one of many new species discovered between 2009 and 2011.

Learn about Red River Hogs in this series of animals facts sheets and coloring pages in one.