Descubre el mundo de las ciencias Enciclopedia/Rourke's World of Science Encyclopedia (Spanish Edition)

Readers learn about various topics from basic objects in the sky and properties of earth materials to the more advanced, structures of living systems and forces and motion in this comprehensive set designed to help with the transition from K-4 to 5-8 grade level studies. Includes full-color photographs with captions, illustrations and diagrams, table of contents, research projects, sidebars, glossary, callouts and cumulative index. Reference: 64 pages in each volume. 10 volumes.