. . "Sciences Encyclopédies." . . "Student discovery science encyclopedia" . . . "The World Book student discovery science encyclopedia" . . . . "Encyclopedias" . . . . "Juvenile works" . "Science reference set introducing important science information and concepts, covering topics from Anatomy to Zoology. Features include science activities and experiments, \"How-to-use\" and \"Did You Know\" sections in each volume, guide words, pronunciation guides, cross references, resource list, and cumulative index." . . .