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

Don't believe a bird could catch a rattlesnake? Believe it. The greater roadrunner lives up to its name by running up to 20 miles per hour and hunting snakes.

Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

Give your child a great coloring page full of fun flower facts! This one is about the iris flower and the butterfly.

Does your second grader love farm animals? This easy writing exercise will help your child be more observant about tracks left by some familiar animals.

Natural resources are crucial for sustaining life on the planet. Encourage your child to get to thinking about plants, one of Earth's natural resources.

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

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

The Goliath birdeater is a spider that lives in South America. Your child will read a paragraph about spider before writing an opinion sentence.

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.

Get to know some of the friendly, furry, feathery river wildlife that live near American rivers, then match each one to its home.

Read about a little-talked-about bird that inhabits the wetlands of Yellowstone National Park, the sandhill crane.

Searching for a worksheet to help your fourth grader with science? This printable will help him practice astronomy vocabulary.

Searching for a worksheet that will help your child practice their reading skills? This printable uses life science as a background to help young readers.

Where is the Earth in space? Check out this worksheet that describes where weÃand some of our neighborsÃare in our galaxy.

Can you help Cornelius create a crazy compost concoction? Help your child review his knowledge of compost and recycling with this fun worksheet.

This coloring page features a puffed up, spiky blowfish.

This worksheet helps kids understand variations in animals and how the same kind, or species, can sometimes look different from each other.

Can you match the scientist with the unit of electricity or power that is named after him?

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?

Dreams can be delightful or downright terrifying. Discover the science behind dreams and try to figure out what your dreams say about you.

Mmmm honey is delicious, but do you know how it's made? Take a dip into some sweet knowledge and find out the buzzy secrets behind honey.

Learn your clouds with this coloring series of cloud types that merges science with coloring fun.

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

This page presents the altocumulus cloud, the kind of cloud that often comes before a thunderstorm.

What is a car made of? This worksheet asks you and your child to think about parts of a vehicle and where each listed resource was used.

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.

All the animals in this word search share one characteristic: none of them have bones! Can your child find the boneless critters hidden in the puzzle?

Learn Jupiter facts in this worksheet. Your child can test his knowledge of the solar system by answering the trivia question at the bottom of the page.

How can you tell how old a tree is? Look no further! This worksheet gives a basic overview of tree rings for your little scientist.