Ever wonder what makes the leaves change colors in the fall? Find out with this fascinating life science worksheet.

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Explore the applications of electrical energy with this helpful second-grade worksheet!

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

Learn about some of the most common forms of energy with this helpful one-pager for third graders!

Discover different types of energy with this third- and fourth-grade science worksheet!

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Read about one of Yellowstone National Park's coolest animals, the big horn sheep.

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

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!

Dig into the past with this third-grade worksheet all about fossils!

Do you measure distance in inches or seconds? When do you use miles? Answer these and more with this third-grade worksheet about the customary system of measurement! 

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

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

Scorpio, the scorpion, is one of the zodiac signs but you can also find him up in the stars at night!

Many legends told by ancient people have characters that you can find as star formations called constellations! This one is Andromeda.

Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

Bikes are a healthy, great way to get from one place to another! Use this bike chart to familiarize yourself with basic bike parts.

Coyotes' famous howl gave them the nickname "song dogs." This is just one of several coyote facts your child can learn from this worksheet.

One of the most famous and easy to spot constellations is the Big Dipper! Formally known as Ursa Major, this constellation was named after a bear.

Before we knew what the stars were, people would often tell stories about the pictures that the stars formed. This one is called Aquila, the eagle!

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?

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

Look up into the night sky, and you may see three prominent stars side by side. This is Orion's belt, one of the most well known constellations!

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.

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.

Light can do amazing things, but nothing else brings out its crazy capabilities like the prism. Learn about the dazzling prism and make one of your own.

Practice naming the planets in our solar system with a fun, visual worksheet! Your child can see the planets in their orbits and try to label each one.

These are the largest tortoises in the world, yet they are only two inches long when they hatch! That's one of the facts you can learn from this worksheet.