"Everything is made of matter. In this book, readers will learn to recognize the three states of matter, how to measure matter, and the way temperature changes matter's forms. An introductory lesson on how matter travels in the water cycle invites readers to examine the broader impact of these essential elementary science concepts, and how they affect Earth's weather. Activities and questions are included to bring these concepts to life in a relatable and tangible way"--From the publisher's web site.

Includes index.

Materials --Volumes -- Solids -- Liquids -- Gases -- Change and temperature -- Melting and freezing -- Evaporation and condensation -- Measuring changes -- Boiling -- The water cycle -- A weather station.