Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

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

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

Put your prediction proficiency to the test in this third-grade physical science worksheet!

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

Get a lesson in sports and science with this engaging third- and fourth-grade worksheet!

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

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

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

Use your detective skills to predict the motion of a seesaw in this third-grade worksheet!

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

Take a science-filled trip to an amusement park in this third- and fourth-grade worksheet!

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

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

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

Explore magnetism with this colorful science worksheet for third and fourth graders!

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

Guglielmo Marconi was a man who made waves in radio and sound. Learn about his life and work, then answer a short essay question in this science worksheet.

Change up your regular classwork with this hands-on science worksheet!

Read about Alexander Graham Bell, the man who made it possible for us to stay connected all day long, in this biography that comes with a science experiment.

Does your little scientist know the different types of energy? Explore energy with this helpful info sheet!

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of the metric system.

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.