Reference, Physics, Science for Kids 

The Sciences, 4th Edition integrates major concepts from physics, chemistry, astronomy, earth sciences, and biology to help anyone become science-literate. Even readers with little or no science background will find this unique book an indispensable guide to understanding the latest headlines, controversies, and scientific developments. The new edition keeps pace with the dynamic nature of the sciences by incorporating the most up-to-date discoveries in all five disciplines.  Design to be used alongside Trefil:  The Sciences, 4E, this Study Guide contains many elements that foster student success.  Included are chapter reviews, learning objectives, key chapter concepts and key concept charts. The ties between science and math are reinforced with key formulas and equations. Links to scientists and their findings are outlined to help improve your comprehension of key subject area concepts. - from Amzon