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

This nonfiction passage helps kids develop reading comprehension skills, as well as learn important ecological facts.

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!

Test your knowledge of electrical energy with this third- and fourth-grade worksheet!

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

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

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

Ready for liftoff? Take to the starry skies with this worksheet that explores the three basic types of galaxies.

What happens to our food after we swallow it? Chomp on some body science with this diagram of the digestive system.

Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

Unearth fossils in this explorative third-grade 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.

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Can your child name 10 animals that make their home in the mountains? After completing this worksheet, he'll know all about mountain habitats!

After he fills in the blanks, your student can hold on to this worksheet on hydrogen for reference when preparing for tests and quizzes on physical science.

After your child fills in this review sheet on chemical and physical properties, it's a good idea to hold onto it for future test review!

This is not your average coloring page. Using only the three primary colors, mix your paints together to form as many colors as possible.

Consider the factors that affect magnetic forces in this informative third- and fourth-grade worksheet!

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

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!

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.

Hypothesis, observation, data...with so many terms, learning the scientific method can be tricky. Learn the steps by helping Dr. McSquare sort out his reports.

Next time you head outside for a hike or a camping trip, bring along this checklist of animal tracks!

The next time you're on a hike, be sure to take this leaf chart to guide you in identifying different types of leaves!

The next time your parents ask you to wash your hands before dinner, read this worksheet about Joseph Lister and take their advice!

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.