Libros de David Armentrout (4 libros)

Explains The Early History Of How The Bill Of Rights Came To Be And How It Is Used To Protect Citizens.

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

Young students will be enthralled with compelling portraits of famous figures who devoted their lives to improving the world. Includes historical photos and illustrations.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.