Lists a selection of trade books written in Spanish for young readers. Books are categorized under the headings For the Very Young, Biology, Ecology, General Science, Physical Science, and Technology. (YDS)

Introduces a list of outstanding science trade books for grade levels K-12 in the areas of Archaeology, Anthropology, Paleontology, Biography, Life Sciences, Integrated Science, Physical Science, Science Related Careers, and Technology and Engineering. Includes information on the selection process. (YDS)

Offers suggestions for activities that demonstrate the principles of osmosis. Explains how decalcified chicken eggs can be used to give students practice with measurement, experimental procedures, and science principles. (ML)

Provides background information on the earthworm. Reviews basic anatomical, behavioral, and reproductive facts. Offers suggestions for procuring, maintaining, and breeding colonies for classroom use. (ML)

Compares and contrasts the habitats, behaviors, feeding habits, and physical characteristics of centipedes and millipedes. Offers suggestions for acquiring and maintaining these invertebrates in the classroom. Sample questions for discussion and investigation are also given. (ML)

Relates information on the characteristics, habitats, and behaviors of praying mantises. Describes the distinctive anatomical features of mantids. Provides suggestions for the care and maintenance of captive mantids. (ML)

Describes the distinctive features of the common snapping turtle. Discusses facts and misconceptions held about the turtle. Provides guidelines for proper care and treatment of a young snapper in a classroom environment. (ML)

Provides instructions for setting up an indoor pond for the elementary school classroom. (CS)

Supports the importance of selecting science activities for middle school students that are appropriate to their age level. Lists a variety of resources for science activities, including 11 unit guides, three source books, four journals, and professional meetings. (CS)

An annotated list (books, magazines, and media) of sources of free and inexpensive science materials is provided, including addresses and costs (if any). (SK)