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The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

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

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

This book introduces the former Duke University basketball star, Grant Hill, who now plays for the Detroit Pistons.

Discusses Things That Rot And Break Down And Things That Don't, How Decomposing Things May Feed Insects Or Animals Or Help The Soil, And Talks About Recycling.

Simple text and photographs introduce the concept of symmetry as displayed by familiar creatures and objects.

Sentir y Pensar. Programa de actividades para desarrollar la educación emocional en la escuela. Incluye Guía para las familias.