Download or read book Focus on Elementary Chemistry Student Textbook 3rd Edition (Softcover) written by Rebecca W. Keller and published by Focus on. This book was released on 2019-02-25 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces young students to chemistry, including the history of chemistry; tools chemists use; atoms; how atoms combine to form molecules; chemical reactions; acids and bases; different types of mixtures; techniques for separating mixtures; food and taste; polymers; proteins; DNA; and more. 12 full color chapters. 118 pages. Grades K-4.