A real world sample of actual data that students can use to see the application of the Hardy-Weinberg law to a real population is provided. The directions for using a six-step algorithmic procedure to determine Hardy-Weinberg percentages on the data given are described. (KR)

Described is how the crumpling of paper balls exhibits the concept of a topological dimension similar to fractals. The mass of the crumpled paper ball is found to be proportional to its diameter raised to a nonintegral power. (KR)

Twelve strategies for planning and implementing successful field trips are presented. Preplanning, bad weather, safety, budget, travel, chaperones, facilities of destination, lesson planning, time constraints, snacking, and special guests are topics of discussion. (KR)

Described is the use of fluorometry in an experiment where the fluorescence of riboflavin is specifically quenched when titrated with riboflavin-binding protein. The amount of riboflavin, required by all organisms, in an unknown solution and the dissociation constant of the vitamin-protein complex can be determined using this method. (KR)

Provides an activity where Ohm's Law deviates from linearity. Compares the current as a function of voltage for carbon resistors, a tungsten filament, and a light-emitting diode (LED). (MVL)

Uses an air track and microwave transmitters and receivers to make a Michelson interferometer. Includes three experiments: (1) measuring the wavelength of microwaves, (2) measuring the wavelength of microwaves by using the Doppler Effect, and (3) measuring the Doppler shift. (MVL)

A review of BioTutor which is software to accompany the third edition of Neil Campbell's textbook, "Biology," is provided. The review includes a brief description of the software and a discussion of good and bad features of the software. In the closing words, the reviewer expresses a considerable amount of concern regarding the quality of this…

Describes a safer, less expensive, preparation-efficient lab (microchemistry and mole) to aid teachers in teaching chemistry. Equipped with small-scale, hands-on activities, teachers can provide students an activity that allow them to collect, analyze, and discuss data all within a single class period. (ZWH)

Several science activities are provided for use with middle and high school students to aid in their understanding of chirality (left and right handedness). (ZWH)

Describes a lesson developed to help inform students of the essential roles that fungi play in our lives. A brief history of fungi and tips for presentation are provided. (ZWH)

Provides an easy, simple, hands-on activity to help students understand the basic concepts behind balancing chemical equations. (ZWH)

Asserts that concerns over the use of animals in science education is confounded by the unworthy introduction of false sentiment by animal rights groups, which persist in ignoring the realities of biology. (PR)

Presents the results of a survey on evolution given to 392 university students in western Pennsylvania. Concludes that, although nearly three-quarters of the students say they believe in the theory of evolution, most do not understand the mechanism behind it. (PR)

From a survey of 1,000 high school students, the following science anxieties were found: (1) danger anxiety, (2) test anxiety, (3) math and problem-solving anxiety, (4) squeamish anxiety, (5) performance anxiety, and (6) classroom anxiety. (PR)

Outlines an activity for large classes that helps students gain an understanding of the variety of sexually transmitted diseases (STD) and the means of transmission of those diseases. (DDR)