Demonstrates the magnitude of an extinction event by using a simulation to illustrate the massive nature of the loss of a family and the number of species that perish to achieve that result. (RT)

Describes activities for secondary earth science and biology classes in collecting, preparing, mounting, and manipulating microfossils. (SL)

This curriculum guide lists science topics and concepts, learning outcomes, and sample learning objectives (in three columns) for these secondary school science courses in Alaska: (1) general science (grades 7-12); (2) life science (grades 7-12); (3) physical science (grades 7-12); (4) earth science (grades 8-10); (5) biology (grades 10-12); (6)…

This document provides information about careers in the agricultural sciences, the biological sciences, chemistry, forestry and conservation, geology and geophysics, meteorology, and physics. The information, presented in separate sections for each of these disciplines, includes: (1) nature of the work performed by scientists in the discipline(s);…

The purpose of this volume is to present a body of basic information about the Great Lakes that is current and based on sound research. Such information is frequently difficult to locate, especially in one reference, and equally difficult to decipher and evaluate. The 16 essays contained in this book deal with a variety of topics including the…