Presented is an electricity problem on simple series circuit. Provided are the problem diagram and answers with explanation. (YP)

Gem and mineral shows are excellent nontraditional opportunities for community education and outreach by geology teachers. Discusses initial club contacts, displays, shows, and the advantages of show participation to academic geologists. (CW)

Illustrates the 29 steps involved in the development of a model of a coordination polyhedron that represents the hexagonal closest packed structure. Points out it is useful in teaching stereochemistry. (TW)

Listed are ways to demonstrate physical and chemical properties of matter and to show electrolysis using an overhead projector. (RH)

Describes a game involving spelling words about animals. Provides a sample of 59 sentences from which words could be used as their letters are held by individual students and they move to form the words. (TW)

Describes a chemistry "trail" (similar to a nature trail) which focuses on chemical phenomena in the environment. The trail includes 20 stops in and around a local school. Types of phenomena examined include building materials, air pollution, corrosion of metals, swimming pools, and others. Additional activities are also suggested. (DH)

Describes water-related activities in an elementary school science project. Activities focus on mini aquaria, permanent aquaria, water toys, sea power, imagination, and village ponds. (DH)

Discusses theory of thermodynamics of the equilibrium in solution and dissociation-dimerization kinetics. Describes experimental procedure including determination of molar absorptivity and equilibrium constant, reaction enthalpy, and kinetics of the dissociation-dimerization reaction. (JM)

Examines problems of dissecting fresh animal lungs (one activity of the "My Body" health education program), considering availability/cost, safety, teacher knowledge, and possible objections from anti-dissection groups. Solutions are offered and suggestions made for making the exercise a teacher demonstration rather than a student activity. (DH)

Provides background information on characteristics common to all insects, activities, and student materials (ready-to-copy games, puzzles, coloring pages, worksheets, and/or mazes) which describe: how insects are classified; how they are different from other animals; and the main insect characteristics. Activities include recommended age levels,…

Provides: (1) background information on insect adaptations; (2) student activities on this topic; and (3) materials (ready-to-copy games, puzzles, coloring pages, worksheets, and/or mazes). Each activity includes an objective, recommended age level(s), subject area(s), list of materials needed, and procedures. (JN)

Presented are: (1) lists of materials needed and instructions for building insect traps, nets, and cages; (2) a list of 45 questions about insects (with answers); (3) a glossary with insect-related words; and (4) a bibliography, listing children's books, field guides, audiovisual aids, and articles appearing in "Ranger Rick" magazine. (JN)

Presents background information and activities that focus on how birds are classified, how they are different from other animals, and the main characteristics of the class "Aves." Activities include an objective, recommended age level(s), subject area(s), list of materials needed, and procedures. Two ready-to-copy pages with bird illustrations are…

Provides (1) background information on ways birds affect humans and how humans affect birds; (2) student activities on this topic; and (3) ready-to-copy materials (crossword puzzle and worksheet). Each activity includes an objective, recommended age level(s), subject area(s), list of materials needed, and procedures. (JN)

Presents (1) a list of 27 questions about birds (with answers); (2) a glossary with bird-related words; and (3) a bibliography listing general reference books, field guides, references on attracting birds, children's books, audiovisual aids, records and videos, articles and related items appearing in "Ranger Rick" magazine, and other materials.…