A young wizard learns the differences between solids, liquids, and gases.

This book in the Primary Physical Science series is full of surprising facts and hands-on activities to help kids explore solids, liquids and gases.

This is now the third edition of a well established and highly successful undergraduate text. The content of the second edition has been reworked and added to w

Read and find out about the three states of matter—solid, liquid, and gas—in this colorfully illustrated nonfiction picture book. Can you make an ice cube d

Explore physics in this early introduction to the states of matter, starring a goofy dog and his all-too-human family. Zippy art and clear explanations introduc