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.

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

Warm up to engineering and thermal energy transfer in this creative worksheet!

The periodic table of the elements is an important classification system of the most basic particles that make up our world!

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

Why does a metal spoon heat up faster than a wooden one? Find out in this engaging energy worksheet!

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

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

Discover the difference between physical properties and chemical properties of matter in this informative science worksheet!

Get a brief history of the atom with this introductory page for young physicists!

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

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.

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

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

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

Design your own heat sink with this energetic activity!