Eureka!

By Bridget Travers, Linda Schmittroth, Mary Reilly McCall

Subjects: Juvenile literature, Encyclopedias, Juvenile Encyclopedias, Technology, Dictionaries, Discoveries in science, Inventions, Science, Inventors

Description: Includes more than 550 topics in the life, earth, and physical sciences as well as in engineering, technology, math, environmental science, and psychology.