Advocates the use of elementary science materials in teaching three-dimensional geology concepts. Elementary science materials from six sources are analyzed for uses in geological considerations. (CP)

The electrode is a lead dioxide-silver plated wire. Construction of the electrode is simple, straightforward, and provides valuable laboratory experience. (Author/BB)

This is an instructional activity from a Crustal Evolution Project (CEEP) module which involves the student with evidence supporting continental drift and the past existance of Pangea. (MDR)

Manipulative models are compared to static models as effective adjuncts in learning to identify plant organs and tissues. Results offer statistical evidence that students have more success at learning to recall the names and functions of plant tissues and microscopically identify them if hands-on experiences have been provided. (Author/MA)

Gives a new definition for the concept of the elementary particle in nuclear physics. Explains why the existance of the quark as an elementary particle could be an accepted fact even though it lacks what traditionally identifies a particle. Compares this with the development which took place during the discovery of the neutrino in the early…

Describes education related products and teaching innovations including: table top BASIC (Tektronix, $7,000) and BASIC/APL (IBM, $9,000) computers; using edited videotapes and audiotapes to illustrate specific teacher behaviors; and the use, and sequence for developing individualized presentations for commercial tape/slide viewers (Singer Caramate…

Presents a computational example of a quantum theory chemistry suitable for inclusion in an undergraduate physical chemistry course. (SL)

Reviews two component systems forming so-called inclusion compounds. (SL)

Reviews determination of atomic weights. (SL)

Presents facts concerning major metals and minerals including existing reserves, existance in the human body, and amounts present in oceans. (SL)

Reviews the study of molecular shapes and structures. (SL)

Reviews the topic of atomic, molecular, and ionic size. (SL)

The following materials are reviewed: a kit of task cards and posters called "Everyday Conservation;" a set of four curriculum guide booklets entitled "Environmental Education Interdependence;" a book in the UNESCO integrated science series; and an OBIS materials set. (MDR)

Describes the present state of the art of instruments in the field of atomic absorption (AA) spectroscopy. (SL)

Contains a glossary of terms related to endangered species and lists reference books, children's books, audio-visual materials, software, and activity sources on the topics. Also identifies wildlife laws and explains what they mean. An index of issues of "Ranger Rick," which includes articles on endangered species, is included. (ML)