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.

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

All attention on atoms in this amazing activity!

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

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

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!

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

Describe how things feel when you touch them and push on them!

What do a key, a goldfish, and a tortoise shell have in common? Find out with this second-grade science worksheet!

Dive into the electrifying concept of electrical energy in this colorful worksheet!

Hey, did you hear that? Explore real-life examples of sound energy with this kindergarten and first-grade worksheet!

Learn about the similarities and differences between objects in this colorful science worksheet!

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

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

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

See if you can identify the objects that let light pass through them with this kindergarten and first-grade worksheet!

If a ship went down, would these items sink or float? Your little one will decide, with this fun worksheet to help him hone sorting and categorizing skills.

Who will win the marble race in this two-page physical science worksheet?

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

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

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

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

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

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

This two-page physical science worksheet gives middle school students an opportunity to explore and compare characteristics of waves.

Is your child baffled by the scientific method? Dr. McSquare is here to help! Learn the steps by helping the doctor organize his lab reports.