Not On My Watch (History Files)

This entry in "My Science Library" series helps little ones decide whether objects come directly from the environment or have been manipulated by man. Hicks tackles some pretty difficult concepts; for instance, some materials that are handled by humans, like clay, are natural, yet a pot made by human hands from the clay is man-made. Bu using bright color pictures and clear captions, the point is driven home through repetition, presenting several natural objects and the man-made creations fashioned from them. She also includes some surprising uses for natural resources; for instance, limestone is an ingredient in some toothpaste. Kids may also learn new words, like environment and avocados. Back matter includes a glossary, websites for reference, and a "teaching focus" section to aid discussions in the classroom Booklist October 2011