Water Quality and Pollution (Milliken Environmental Studies Transparencies, Grades 3-5)

Milliken transparency books are excellent supplements for science textbooks and for enriching the classroom curriculum. Each book contains 4 vivid, full-color tranparencies, 20 activity pages and a teaching guide.The world today is faces with a variety of environmental problems. No country in the world has escaped pollution and resource depletion. Basic ecological principles are often ignored and bring about environmental disaters.