Everything in the universe is made from matter. This book examines the structure and properties of atoms (the building blocks of matter) and describes how atoms bond to form various types of molecules. Matter exists in liquid, solid, or gaseous states. The book also looks at the properties of matter in detail, including how they mix and form solutions and how they can change state by the addition or removal of energy. This series describes the essentials of chemistry, from the fundamentals of atomic structure, through the periodic table, to descriptions of different types of reactions. The properties of elements are covered, as well as industrial applications for chemical processes.