Matter has several forms, and these can be changed physically or chemically. This science book will dive deep into the topic of physical and chemical change wit

General chemistry information including everything from matter to radioactivity. For grades 5 to 9.

"[This book] has been honedÖinto an elegant compendium. This outstanding work should be widely read -- it is perhaps the best example of an integrative approac

Praise for the new edition: In this 7th edition of Physical Change and Aging: A Guide for the Helping Professions the authors, Drs. Saxon, Etten and Perkins, br

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