Solid, Liquid or Gas is a book for Grades 3-5 students in the Children's Physics Books Decodables Edition series.

It Matters! What is Matter? Solid, Liquid or Gas is a richly crafted resource designed to engage and inform students, educators, and lifelong learners alike. Whether used as a classroom text, a library reference, or an independent reading selection, this book delivers substantive content with clarity and depth, making it an outstanding choice for school and public library collections serving grades K–12.

When water gets cold, it turns into ice. When ice gets warm, it melts into water again.

At its core, It Matters! What is Matter? Solid, Liquid or Gas excels at presenting complex ideas in an accessible, reader-friendly format. If water gets hot, it turns into steam, which is a gas. Chemical properties show how matter can change into something else. When water gets cold, it turns into ice through freezing. The book's thoughtful structure guides readers through the material in a logical, engaging progression, building understanding chapter by chapter while maintaining the curiosity and momentum that keeps students turning pages.

Educators and curriculum designers will find It Matters! What is Matter? Solid, Liquid or Gas particularly well-suited for integration into STEM, technology, and engineering curricula. The book features a helpful glossary, discussion questions, and sidebars and fact boxes, all of which support differentiated instruction and accommodate a variety of learning styles. Teachers can draw on this resource for whole-class instruction, small-group discussion, independent research projects, and enrichment activities that extend learning beyond the classroom.

It also supports instruction in science & nature and history & social studies, making it a versatile addition to any collection.

School librarians and public librarians will appreciate the book's broad appeal and its ability to serve patrons across a wide range of reading levels and interests. Its clear organization, authoritative content, and engaging presentation make it easy to recommend for both recreational reading and academic research. The book's durability as a reference resource ensures it will remain relevant and useful for years to come, providing lasting value to any collection.

It Matters! What is Matter? Solid, Liquid or Gas represents exactly the kind of high-quality, curriculum-aligned literature that belongs in every school library, public library, and classroom bookshelf. It sparks curiosity, deepens understanding, and empowers students to become confident, independent learners — making it an essential acquisition for educators and librarians committed to building exceptional collections that inspire a lifelong love of reading and learning. This carefully researched and beautifully presented volume reflects the highest standards of educational publishing, offering students and educators a trusted, authoritative resource they can return to again and again. From its opening pages to its final chapter, It Matters! What is Matter? Solid, Liquid or Gas demonstrates a deep commitment to accuracy, accessibility, and educational excellence that sets it apart as a must-have addition to any well-curated library collection.