"Children will be amazed to learn that a liquid can become a solid when it freezes, gases can turn into liquids when they cool down, and a solid can change into a liquid when it is heated. This magical book explains in a simple way how materials change when we do things like bake a cake, melt ice, or burn a candle. Easy experiments also show children how to change materials using common household items."--from p. [4] of cover.

Mixing and Separating discusses the ideas of mixtures, materials that combine to form a new material, and materials that cannot be combined.

Discusses garbage and recycling, and examines what they are, what happens to garbage when it is taken away, and environmental issues arising from the ways we dispose of garbage and choose to recycle in our homes.