Learn to read a standard thermometer in both Fahrenheit and Celsius in this informative second- and third-grade worksheet! 

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!

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

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.

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

Learn the ins and outs of one of the body's most important organs: the heart!

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!

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

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

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

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.

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! 

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

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.

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.

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.

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