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.

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

Practice describing different objects and substances in this colorful worksheet!

Listen to the sounds of everyday life in this science worksheet!

Let your scientific skills shine as you decide which objects will let light pass through in this kindergarten and first-grade worksheet!

Learn a basic concepts physical science with this fun worksheet. Your little one will decide which objects sink, and which ones float!

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

Discover the three ways heat can move from one place to another in this middle school worksheet!

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

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

This is not your average coloring page. Using only the three primary colors, mix your paints together to form as many colors as possible.

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

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

Hypothesis, observation, data...with so many terms, learning the scientific method can be tricky. Learn the steps by helping Dr. McSquare sort out his reports.

This list of elements is missing mega-information: a combination of category, name, number, or symbol. Can you fix them up?

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

In this physical science worksheet, students will review how to calculate velocity given time and distance and then apply this process to several diverse word problems.

Zoom in on atoms in this informative worksheet!