Radiolabelled pesticides are used: in studies involving improved formulations of pesticides, to assist in developing standard residue analytical methodology, and in obtaining metabolism data to support registration of pesticides. This manual is designed to give the scientist involved in pesticide research the basic terms and principles for…

A set of interactive, computer-simulated experiments was designed to respond to the large range of individual differences in aptitude and reasoning ability generally exhibited by students enrolled in first-semester general chemistry. These experiments give students direct experience in the type of decision making needed in an experimental setting.…

This publication provides supplemental information which can be used by the teacher to accompany each unit in the Regents Biology Syllabus. Each unit of the supplement addresses topics and understandings in the corresponding unit of the syllabus. These units are: (1) unity and diversity among living things; (2) maintenance in living things; (3)…

Background information, lists of materials needed, and detailed procedures are provided for five science projects. These projects involve constructing and using: (1) an electric pencil; (2) a buzzer to send coded messages; (3) a battery which produces light; (4) a radio that plays for free; and (5) a supersensitive cigar-box microphone. Diagrams…

A summer science camp was held in Korea for 30 ninth grade students gifted in science. Students were divided into three groups (physics, chemistry, and biology) for activities which included problem solving, brainstorming, and experimental work. The experiments of the physics group addressed the use of solar energy, the chemistry group focused on…

This paper describes the events following the news of Oersted's discovery of the effects of a current of electricity on a magnetic needle. It focuses on Biot and Savart's law which expresses the force between a current element and a "molecule of magnetism" that can be deduced from Ampere's law of interaction between two current elements.…

This laboratory manual consists of three major sections. The first section deals with Direct Current (DC) fundamentals, and is divided into 17 phases leading towards the design and analysis of a DC ammeter and a DC voltmeter. Each phase consists of facts and problems to be learned in the phase, preliminary discussion, laboratory operation…

This publication was developed as a portion of a two-semester sequence commencing at either the sixth or seventh term of the undergraduate program in electrical engineering at the University of Pittsburgh. The materials of the two courses, produced by a National Science Foundation grant, are concerned with power conversion systems comprising power…

This publication is a Mechanical Engineering Laboratory Manual designed to be used by technical institute students in Mechanical Engineering Technology Programs. The experiments are introductory in nature and embrace the fields of applied thermodynamics, fluid mechanics, refrigeration, heat transfer and basic instrumentation. There are 20…

This guide contains lesson plans and outlines of science activities which present concepts of solar energy in the context of the junior high science curriculum. Each unit presents an introduction; objectives; skills and knowledge needed; materials; methods; questions; recommendations for further work; and a teacher information sheet. The teacher…

This book is intended to serve as a source of ideas for devising simple scientific activities, investigations, and experiments and for the construction of necessary equipment using available materials. This revision of an earlier edition reflects modern approaches to science teaching at the elementary and secondary school levels. This edition has…

A time-sharing FORTRAN program is described. It was created to allow a student to design and perform classical thermodynamic experiments on three models of a working substance. One goal was to develop a simulation which gave the student maximum freedom and responsibility in the design of the experiment and provided only the primary experimental…

Presents an analytical or inorganic chemistry laboratory experiment in preparing nickel macrocyclic complex. (SL)

Discusses the benefits of thermochromic transformations for studying thermodynamic properties. Describes an experiment that uses a commercially available dye, attains equilibrium rapidly, employs a simple, single-beam spectrophotometer, and is suitable for both physical chemistry and introductory chemistry laboratories. (TW)

Describes how a Polaroid camera can be modified for spectroscopic experiments. Reviews experimental procedures and discusses results that students can obtain within one normal laboratory period. Suggests additional experiments for investigating emission from other sources. (ML)