Ever wonder what causes lightning to strike? Explore the physics of lightning with this striking physical science worksheet!

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

These elements are all out of sorts! Can you check out the periodic table to find the missing information from each element?

How fast does sound travel? Help your child figure out the physics of sound waves with this informative worksheet.

Children are introduced to the concept of the speed of light in this illustrated worksheet.

Help your child get to know the most elementary of the elements with these handy worksheets.

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.

This worksheet teaches kids about the physics of hockey, applying principles of classical mechanics to an effective slapshot.

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

Did you see the announcement in 2016 about new elements added to the periodic table? Put these new periodic elements flashcards in your study toolkit.

Learn all about how to convert centimeters to inches in this practice worksheet.

Help your child get to know an elementary element with this worksheet about iron.

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

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Renewable energy is extremely important for the Earth's future! Test your child's knowledge of renewable resources with this review sheet.

This painless--even fun!--worksheet gets middle-grade students practicing with the information in the periodic table of elements.

Calling all mad scientists... Electrify your enthusiasm for science! This awesome worksheet will show you step-by-step how to make an electromagnet.

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

Help your child get to know his elementary elements with this handy worksheet on copper.

Don't let school year learning slip away this summer: use this chemistry worksheet to practice identifying elements.

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!

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

Find out all about the different parts of the eyes and how they work together to make vision possible.

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

Give middle-grade students a painless beginner's introduction to the periodic table of elements with this fun worksheet.

This Thanksgiving, serve up some Thanksgiving science learning and find out all about the chemicals that make up a typical Thanksgiving meal.

Help your child get to know the most elementary of the elements with this handy worksheet on silver.

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

Important information has gone missing from the periodic table. Can you fix up these elements so that they read the right way?