Modeled after the program "Mastermind," this program teaches students the art of protein sequencing. The program (written in Turbo Pascal for the IBM PC, requiring 128K, a graphics adapter, and an 8070 mathematics coprocessor) generates a polypeptide whose sequence and length can be user-defined (for practice) or computer-generated (for…

Presents two simple techniques for physics demonstrations: (1) a projection lens system for oscilloscopes which uses an inexpensive surplus lens and enables the entire class to observe the screen; and (2) a polarized optical "Cheshire cat" which uses the overhead projector and Polaroid sheets. (JN)

Twenty teachers were selected to teach 20 elementary classes a science lesson featuring laboratory experience in small groups. Ten teachers were alerted to the possibilities of sexism in the physical sciences. Results indicated girls in mixed-sex work groups participate less when the teacher is less aware of sexism problems. (Author/CH)

Describes experiments designed to: (1) familiarize students with inert atmosphere techniques; (2) teach monitoring reactions with thin-layer chromatography and infrared spectroscopy, isolation, and purification by crystallization and column chromatography; (3) estimate product purity spectroscopically; and (4) characterize reaction products by…

Describes a demonstration in which gaseous ammonia and hydrochloric acid are used to illustrate rates of diffusion (Graham's Law). Simple equipment needed for the demonstration include a long tube, rubber stoppes, and cotton. Two related demonstrations are also explained. (DH)

Reviews the space classroom that would have been conducted by Christa McAuliffe during the space shuttle flight. Includes lab activities, word puzzles, vocabulary lists, and graph reading exercises for elementary science students. (ML)

Describes hardware and software requirements for interfacing a thermometer probe, via an analog and digital converter, to any Commodore PET, VIC-20, or Commodore-64 microcomputer (or other microcomputers with some modifications). Also describes use of the probe in an experiment measuring enthalpies of reaction to determine enthalpy of formation of…

Relates how Charles Martin Hall discovered the method of making pure aluminum metal in 1886. Retraces the events and steps that led to the process of aluminum purification. Includes diagrams of the apparatus used in the investigations. (ML)

Offers suggestions for activities that demonstrate the principles of osmosis. Explains how decalcified chicken eggs can be used to give students practice with measurement, experimental procedures, and science principles. (ML)

Describes an educational experiment conducted at Miami University where graduate cable management seminar students were given hands-on experience in developing programming ideas and producing programs for a cable television channel. Learning objectives, evaluation methods, and faculty and on-site supervisor roles are discussed, and recommendations…

The three principal commercially published science projects for less able/motivated students include units on electronics. A simple and inexpensive method of constructing electric circuits is described. Suggestions for making the material in the published units applicable to circuits found in everyday situations are offered. (JN)

Presents 23 experiments, activities, field projects and computer programs in the biological and physical sciences. Instructional procedures, experimental designs, materials, and background information are suggested. Topics include fluid mechanics, electricity, crystals, arthropods, limpets, acid neutralization, and software evaluation. (ML)

A new program for training upper secondary school chemistry teachers (SE 537 693) depends heavily on student project work. A project in which lead in hair and in red wine was examined by potentiometric stripping analysis is described and evaluated. (JN)

Describes a computer-based instructional unit in cardiovascular physiology. The program (which employs simulated laboratory experimental techniques with a problem-solving format is designed to supplement an animal laboratory and to offer students an integrative approach to physiology through use of microcomputers. Also presents an overview of the…

Explains the "Overview-Case Study Method" for teaching high school physics which has evolved from the author's experience/success with a program in which 90 percent of the high school's students take physics as an elective. Areas considered include methods, case studies, textbooks, multilevel physics, qualitative physics, and real-life…