A cassette and read-along paper back book explaining the uses of satellites and the science behind the rockets that put them in our orbit. Includes Newtons Laws of motion. (Geared toward children.)
Library Binding
(Troll Communications Llc, July 1, 1985)
Explains the natural patterns by which plants and animals depend upon each other and the environment for food, and emphasizes the dangers of pesticides and other human interference with the ecosystem.