Our understanding of the atom has changed over the past few hundred years! Read about a few different theories on the structure of an atom.

Test your students' knowledge and memory of periodic table elements with this crossword puzzle.

Arm your budding physicist with a free print-out version of the periodic table of the elements!

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.

Learn all about charging by friction with this fascinating science worksheet for middle grades!

Practice using the periodic table to calculate the number of neutrons in the atom of an element.

Learn the basic structure of an atom with this introductory page, complete with a fun experiment they can try at home!

Geared toward middle school learners, this worksheet helps students explore the relationship between a wave’s energy, amplitude, and frequency.

Explore how waves interact with materials in this engaging physical science worksheet for middle grades!

Help students visualize the relationships between kinetic energy, mass, and speed in this physical science worksheet!

Help students deepen their understanding of matter with this chemisty worksheet!

Learn all about digital and analog signals with this fascinating science worksheet for middle grades!

In this engaging chemistry worksheet for middle grades, students learn about how concrete is made and how it is used in our society.

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.

This cool physics worksheet helps kids learn how centripetal force and centrifugal force can explain why short track speed skaters don't fall over during turns.

Explore the strength (or magnitude) of magnetic forces with this two-page physics worksheet for middle grades!

Learn some basic chemistry with this worksheet about the universal solvent: water. Find out why water is called the universal solvent.

To understand electricity, you have to get down to the basics. Explore the literally microscopic world of electrons to get a grasp on electricity.

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

In this worksheet, kids learn about basic physics concepts like mass, momentum, and velocity by applying them to a popular winter sport: slalom skiing!

Sink or float? Your kid may be surprised to learn that the density of coke and diet coke aren't the same!

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

With two simple yet fun experiments, this worksheet covers the interesting topic of cohesion and adhesion of water.

Get to know the periodic table with this fun scavenger hunt-themed worksheet! 

Explore elements and compounds in the context of particle models and chemical formulas!

Have you ever thought about playing basketball in space? This middle-grade science worksheet discusses how forces and Newton’s Laws of Motion affect a game, both on Earth and on the moon! 

Learn how manufacturers test car safety in crash tests with this informative physics worksheet!

Explore chemical equations with this middle-grade science worksheet!

Learn the language of chemistry by reading and writing chemical equations in this middle-grade worksheet! 

Learn about lightning and charging by induction in this engaging middle-grade worksheet.