Covering a wide spectrum of knowledge with a simple and direct approach, this science encyclopedia is written from a child's viewpoint and tries to answer a young reader's questions. It has 500 alphabetically-arranged entries, with 40 key features from acid rain to water, and information panels. Fact boxes and simple cross-references allow readers to access a wide variety of scientific information across the entries. This encyclopedia also includes step-by-step photographs of children performing experiments.
Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.