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

Brush up on some physics vocabulary with this energy word search!

Learn about the texture and hardness of different objects in this second-grade worksheet!

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

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

Are students studying electricity? Give them a break from the scientific nitty-gritty with this fun word search full of electricity terms!

What do juice, water, and tea have in common? Compare and contrast matter in this engaging second-grade worksheet!

Budding inventors can get a fun review of the simple machines with this word search.

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

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!

Engage your little scientist with a fun word search, all about sinking and floating! He'll be learning a basic concept of physical science.

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

Introduce the basic concepts of sinking and floating with this fun worksheet. Your budding scientist will decide if these objects sink or float!

Shed some light on the interactions between objects and light with this science worksheet for kindergarteners and first graders!

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! 

Ever wonder about how to make the perfect paper airplane? Learn about the four forces that affect flight with paper airplane physics!

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

Dr. McSquare is here to help kids learn the scientific method. His reports are all in disarray--can your child sort label each part with the correct step?

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

Unscramble key vocabulary words about energy and collisions with this engaging science worksheet!

Help your child learn about one of the most elementary elements, gold.

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

Dr. McSquare needs help sorting out his lab reports. Can your child read each item, then label it with the correct scientific method step?

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

Review energy terminology with this fun fourth-grade crossword puzzle!

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.

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

What's the difference between renewable and non-renewable energy? Help your student discover the various forms of energy we use each day.