This action video for children 2-7 years old introduces many of the most common invertebrates that share our world with us. Students can explore the tiny world of insects, spiders, and other invertebrates by seeing close up how these organisms move, eat, and carry on other daily functions. Also included are tips on how to stimulate conversation…

Whether in carrier flight operations, resupply at sea, antisubmarine warfare, amphibious landings, sea search and rescue, or ship routing, sea conditions, at the place and time the operation is being conducted, become vitally important. The success or failure of any operation being conducted in an ocean environment is greatly dependent upon the…

This document provides biology experiments designed for students who have completed a first year biology course. This self contained laboratory booklet contains four sections. In section 1, "Instrumentation in the Study of Cells," discussion sections and suggestions for teacher demonstrations are provided. It also includes some basic materials…

Discusses how early notions about celestial mechanics were restructured, one by one, involving the following concepts: the celestial sphere and its rotation; the spherical earth; planetary motion; and models for the solar system initiated by Eudoxus, Hipparchus, Ptolemy, and Copernicus. (JJK)

This document was developed in cooperation with secondary teachers and solid waste management professionals. The goal is to integrate steel recycling, natural resource conservation, and solid waste management into science learning. Basic concepts from the following chemistry units have been used to design the lessons and activities: transition…

Describes an activity in which students can investigate and evaluate the amount of iron found in most fortified breakfast cereals or cream of wheat. Includes a list of necessary materials, safety precautions, experimental procedure, disposal protocol, and nutritional explanation, utilization, and variations. (JJK)

Many people feel that the purpose of an education is to prepare students for life outside of school. To help reach this desire it has been suggested that students be allowed to experience and confront issues that they will experience later in their lives. This book confronts students with major issues in science that in many instances have created…

The purpose of this booklet is to provide a basic understanding of nuclear fission energy and different fission reaction concepts. Topics discussed are: energy use and production, current uses of fuels, oil and gas consumption, alternative energy sources, fossil fuel plants, nuclear plants, boiling water and pressurized water reactors, the light…

The National Aeronautics and Space Administration (NASA) has produced a distance learning series of four 60-minute video programs with an accompanying Web site and companion teacher guides designed for students in grades 3-5. The story lines of each program or episode involve six inquisitive school children who meet in a treehouse. They seek the…

Traces cosmogonic history of solar system from Laplace's hypothesis of revolving gas nebulae, to Newton's two-body problem with its mathematical impossibility of gravitational capture, to the isosceles three-body problem of Schmidt and Sitnikov with its notion of partial capture, and finally to the total capture model of Alexeyev verified by the…

Describes the great variety of observations surrounding the auroras (both borealis and australis), and provides photographs from the space shuttle, Discovery. Discusses where and when the auroras can be observed, the process that the Earth's magnetic phenomena fulfill in how and why auroras appear, and the effects of solar wind upon auroras. (JJK)

This pocket folder of materials is designed to provide children aged 9 to 12 with an opportunity to explore and observe aquatic environments. The package includes a 4-H Leader's guide, member's guide, and supplementary materials. The leader's guide contains safety considerations, tips and techniques, and additional activities for getting started…

This book provides a basic introduction for the student to hazardous materials chemistry. Coverage of chemistry, rather than non-chemical hazards, is particularly stressed on a level which the layman can understand. Basic terminology is emphasized at all levels, as are simple chemistry symbols, in order to provide the student with an introductory…

Presents a simple, graphical method for tracking the apparent motion of the Moon through a seven-day phase. Describes the necessary equipment, and the daily procedure for making observations. Includes suggested open-ended questions along with an appropriate reference. (JJK)

Compares the attributes of the silk from spiders with those of the commercially harvested silk from silkworms. Discusses the evolution, design, and effectiveness of spider webs; the functional mechanics of the varieties of silk that can be produced by the same spider; and the composite, as well as molecular, structure of spider silk thread. (JJK)