Get to know your Jurassic from your Cretaceous in this handy geologic time periods chart.

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.

Ever wonder what the earth is made of? Practice reading and writing, and learn about the four layers of planet Earth.

Constellations are not just named after animals, some of them are named after people! Learn about the constellation Sagittarius with this fun worksheet.

What happens to water after it rains? Learn about the stages of the water cycle in this colorful worksheet!

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

This is one angry looking constellation! Meet Taurus, one of the twelve constellations of the zodiac.

In this puzzle, children will trace the names of the seasons, then cut them out and paste them below the correct picture.

Learn about the science behind one of nature's most awesome spectacles: monsoons.

This angelic constellation is Virgo, one of the twelve special symbols of the zodiac.

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

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

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.

Sagittarius clearly isn't your average archer -- for one, he's half a man and half a horse!

Dive into this astrological dot-to-dot worksheet with Pisces, one of the twelve constellations of the zodiac.

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

Explore one of the great mysteries of the universe with this space science worksheet on black holes.

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.

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

Don't let your kid bark up the wrong tree! Engage him in a word search filled with tree terms, boosting his attention to detail and problem solving skills.

Learn Saturn facts with this science printable, like that it is one of the large gas planets 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!

If you like scorpions, you may be a Scorpio! Scorpio, Latin for scorpion, is one of the twelve constellations of the zodiac.

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.

How was our solar system created? Read a bit about one of the most well-known theories in this worksheet about the Big Bang.

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.

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!

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!