Describes a low priced ripple tank with accessories for use with an overhead projector as well as the assembly of a variable speed wave source. Photographs are included. (GH)

Introductory science has become a discovery course for the students at Phillips Exeter Academy (New Hampshire), who are above average in ability and motivation. The philosophy of the course is that it should serve a more humanizing function than the preparation of young technicians, and that this function is as important for the future scientist…

Fourteen basic experiments in mechanical engineering, intended for use at the sophomore level, are presented. The experiments are described as open-ended in order to give students the opportunity to discover the importance of stable operating conditions. The concept of experimentation is introduced and there is an interrelation between theory and…

Presented is a discussion of the events of the 20-year lapse between the invention of the pile in 1800 by Volta, and Hans Christian Oersted's famous definitive paper "Effects of a Current of Electricity on the Magnetic Needle." Students are thus enabled to appreciate the climate of the time and the manner and significance of Oersted's…

This paper focuses on the search for electromagnetic induction from 1820 to 1831 and the efforts by Augustin Fresnel's colleague, Andre Marie Ampere, in electric and magnetic induction. Faraday's work is discussed with excerpts from his diary on electromagnetism. A variety of different experiments by researchers including Francoise Jean Arago,…

This paper focuses on Michael Faraday's experimental research in electricity in the 1830's. Historical notes related to his work are included as well as experiments, his objectives, and illustrations of equipment for the experiments. Examples from his diary are given so that students can attempt to emulate his honest and systematic manner of…

Reported is a study to investigate the effects of a free-choice program on children's ability to interpret experiments, design simple investigations, and recognize variables that could affect the outcome of observed events. (Author/SA)

This study describes children's learning in a free-choice environment. Teacher controlled instruction is minimized and children participate in a wide variety of science activities with equipment that is selected by each individual student. The study occurs within an elementary school's Science Enrichment Center and the children work on the…

A SERIES OF EXPERIMENTS WAS CONDUCTED TO TEST THE EFFECTIVENESS OF TELEVISED INSTRUCTION. THIS STUDY, THE SEVENTH IN A SERIES, EVALUATED THE EFFECTIVENESS OF THREE PROCEDURES TO STIMULATE STUDENT EXTRACURRICULAR SCIENCE ACTIVITIES. IN THE FIRST PROCEDURE THE PRESENTATION METHOD, ADULT INSTRUCTORS PERFORMED THE EXPERIMENTS IN ONE VERSION AND…

In the Skylab student project, high school students submitted proposals for experiments that could be performed on board Skylab by the astronauts. This book describes the experiments designed by the students and reports what happened to those experiments in the space laboratory. The student experiments included studies of the central nervous…

Basic knowledge about Skylab experiments is presented in this book for the purpose of informing high school teachers about scientific research performed in orbit and enabling the teachers to broaden their scope of material selection. The seventh volume deals with the ability of the Skylab crew to live and work effectively in space. The content is…

Presents a list of Biology-A level projects submitted for the Oxford and Cambridge Board examination by pupils of Uppingham School in the United Kingdom. (HM)

An experiment is described which uses lead sulfide to illustrate the concept of definite proportions as well as the union of atoms to form compounds. This experiment has been successfully used with ninth graders. The advantages of this experimental procedure over available alternatives are listed. (MR)

Describes a junior high school level exercise using plant pigments as acid-base indicators. (SL)

Discusses the range of wavelengths of the electromagnetic spectrum considered to be the visible portion. Describes a demonstration designed to help students understand the relation between the wavelength measurements on a spectrophotometer such as the Spectronic 20 and the actual colors of light being used. (TW)