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

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.

Atoms are some of the tiniest particles that make up our world. Give kids some perspective with this worksheet that shows kids just how small atoms are.

Is orange juice a solid or liquid? What about a cookie? Practice classifying everyday objects in this first- and second-grade states of matter worksheet!

Practice describing different objects and substances in this colorful worksheet!

Kids draw examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

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

What is the difference between condensation and evaporation? Learn about natural cooling and heating processes that are caused by changing states of matter!

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!