Described are demonstrations designed to reveal the important "nonsolvent" properties of water through its interaction with a toy called "Magic Sand" and other synthetic silica derivatives, especially those bonded with organic moities. The procedures for seven demonstrations along with a discussion of the effects are presented. (CW)

Presented are laboratory methods which allow the demonstration and determination of the diffusion coefficients of compounds ranging in size from water to small proteins. Included are the procedures involving the use of a spectrometer, UV cell, triterated agar, and oxygen diffusion. Results including quantification are described. (CW)

Some of the background factors and deleterious effects of oil spills are discussed. A classroom activity which demonstrates an oil spill, how the oil affects feathers, and one clean-up method is presented. A list of recent oil spills and three additional resources are included. (CW)

Discussed is an activity designed to teach small mammal ecology and the scientific method using fluorescent dyes and pigments. Procedures for analyzing home ranges and social organizations are described. A list of 16 references is included. (CW)

The synthesis of 4-acetylbiphenyl on a semimicroscale for use as an organic laboratory exercise is described. Materials, experimental procedures, and results are discussed. Sample NMR spectra used in the resulting analysis are provided. (CW)

Describes two working models of moths that can be used to test the eyespot function as an aversive property. Uses simple mechanical and electrical models as the "moths" and wild birds as the predators. Includes diagrams, methods, models, validation statements, and a discussion. (RT)

Introduces and describes the Laboratory Procedure Module (LPM) modified from a task analysis approach used by laboratory technical training programs based on instructional system design model. Overviews the LPM design, including primary goal, enabling objectives, task steps, overview, demonstration, written test, practice, and procedural…

Described is a school-focused pattern of initial and inservice training of teachers which emphasizes self evaluation and development through team membership. Details the workshop schedule and discusses activities used. (CW)

Using fourier transformation methods in nuclear magnetic resonance has made possible increased sensitivity in chemical analysis. This article describes these methods as they relate to magnetization, the RF magnetic field, nuclear relaxation, the RF pulse, and free induction decay. (CW)

Presented are 14 student worksheets for use in teaching the care of and humane treatment of animals. Topics of these games and puzzles include state animal trivia, domestic pets and wild animals. An answer sheet for teachers is included. (CW)

Described is a laboratory activity in which high school students may perform a karyotype analysis of their own chromosomes. Materials and procedures are detailed. A source of materials for this exercise is provided. (CW)

Described is an advanced undergraduate laboratory course which gives students an opportunity to grasp the material better than in the segmented approach. A list of required experiments and a discussion of the evaluation of the course are provided. (CW)

Presented are 14 student worksheets for use in teaching the care and humane treatment of animals. Topics of these games, puzzles include both domestic pets and wild animals. An answer sheet for teachers is included. (CW)

Describes a learning game in which students will find about 40 different ways they can help animals, learn more about animal needs and people's responsibilities for animal welfare. Provides directions, suggested activities, and two copyable pages of game cards. (Author/RT)

This paper includes a general account of the biology of the brine shrimp, instructions on how the organism may be cultured, the results of some experiments on the ecology and population biology of the species, and some suggestions for further studies. (Author/CW)