Big ideas for young scientists

Explains how muscles and bones help the human body move, using different types of models to demonstrate how the muscles and bones create a framework that helps a person move.

An introduction to wind and water that discusses wind power and waterpower, natural disasters, erosion, and weather changes. Includes a glossary and an index.

Simple text, illustrations, and photographs teach young scientists about the different ways trees adapt to their climate and environment.

Describes the importance of recycling yard trash into compost, how it can be used to make fertilizer, and how it helps the environment.