Download or read book Changing Matter written by Tracy Nelson Maurer and published by Britannica Digital Learning. This book was released on 2014-05-30 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title teaches students that everything is made of matter and that physical changes create different forms or states of matter. Examples of these different states are presented in easy-to-understand text. The book also introduces students to the law of conservation of mass.