Kids practice identifying liquids for a lesson on the states of matter in this 1st grade physical science worksheet.

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

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.

Can your little geologist identify the three main types of rock? Test his earth science savvy with a matching activity.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

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

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.

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.

Before trees grow into trees, they start out as little seeds. Can your child match the fruit and seeds with the trees (or plants) they came from?

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

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

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.

Worm your way through this soil maze, which doubles as a fun way to review the names of the different soil layers.

Jaguars eat deer? Wow. Alligators, too? Are you kidding? What don't they eat? There's way more to learn about these intriguing eaters in this cool worksheet.

Ever wonder what the earth is made of? Help your little scientist to examine the different types of soil particles with this worksheet.

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.

Kids follow corn as it grows from seed to vegetable on this simple cut-and-paste growth chart.

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

Do you know what's the largest parrot in Africa? It's the African grey parrot! Learn about this blabbering bird and give the image some color.

When we push or pull an object, we exert force on it. Get your child thinking about force by challenging him to describe how each person is exerting force.

Children familiarize themselves with the tracks of a duck, bobcat, coyote, deer, raccoon, and black bear in this life sciences worksheet.

Little outer space explorers, welcome back to our home planet: Earth! Help your child read a few fun facts about planet Earth with this coloring page.

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

Animals need to adapt to survive! Teach your child how some animals can blend with their surroundings using camouflage.

A coloring sheet of a Mars rover searching for life on other planets.

Through a simple matching activity, kids learn how their actions can have a direct effect on the environment.

Take a look and learn all about this beautiful and rare tiger from the islands of Sumatra in Indonesia.

This worksheet tests kids' understanding of basic heredity by asking them to match parent turtles with their offspring based on similar traits.