What do a carrot and a kangaroo have in common? They're made of matter, just like everything else in the universe! In this book, readers in grades 4-9 will discover how we measure matter and how it changes, mixes, and reacts. These reactions make life possible! This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.