Describes the Environmental Control policies and legislation in Chicago, Illinois concerning air, water, noise, solid waste management, urban life, and food protection. This article is the first of a series dealing with urban environmental health situations. (MA)

The conflicts between various interest groups over the use of the Yellowstone River in Montana are examined. (MDR)

Using winter snow, kindergarten students can explore the properties of water. Students demonstrate melting, freezing, expansion, and evaporation through a number of activities involving a paper cup and a scoop of snow. Procedures and student reactions are described in detail by the teacher-author. (MA)

This section contains a listing of the manufacturers of environmental monitoring instruments. The manufacturers are listed alphabetically under product headings. Addresses are included in a different section. (MA)

Details the construction and operation of a high quality, low cost piece of apparatus to determine oxygen concentration in water. (CP)

Summarizes what is known about two major variables involved in certain types of chemical pollution that seem to be changing the structure of the Earth's atmosphere. Discusses the greenhouse effect and the ozone layer. (TW)

Discusses the meaning of sea level change and identifies the major factors responsible for this occurrence. Elaborates on the theory and processes involved in indirect measurement of changes in sea volume. Also explains how crustal movement affects sea level. (ML)

Presents the results of a review of chemistry textbooks aimed at finding values for the equilibrium acidity constant for water and the hydronium ion. Only three of 23 give correct quantitative values for water and none for hydronium. Provides calculations of the constant for both water and the hydronium ion. (JM)

Discusses Cuban medical facilities, biological research (focusing on sugarcane tissue culture, interferon, hybrid cattle, tropical fruits, and yeast biosynthetic pathways), science education programs at all levels, and institutions of higher education. Also examines such concerns as the Cuban literacy rate and efforts to improve the environment.…

Discusses soil erosion, drought, forest systems, overfishing, global climate change, hunger, population, energy, and building a sustainable society. Emphasizes the breakdown of natural systems in Africa. (Most of the material in this article was drawn from "State of the World 1985: A Worldwatch Institute Report on Progress Toward a…

Procedures for demonstrating rainbows in the classroom are provided. Materials required include a clear plastic box (the size of a shoebox), water, and an overhead projector. Also tells how to make a rainbow on the chalkboard using colored chalk. (JN)

Lists and briefly describes 46 college-level films. Films are arranged in the following categories: volcanism and earthquakes; plate tectonics; energy, water, and environmental concerns; petroleum and coal; astronomy; space exploration, space shuttle; paleontology; geomorphology; and mineralogy, petrology, and economic geology. (BC)

This document provides a brief compilation of descriptions of agricultural education programs linked to Career and Technical Education (CTE) initiative in Minnesota. Agriculture Exploration courses focus on the animal sciences, plant sciences, natural resource sciences, agricultural business and marketing, and leadership development. Agribusiness…

This paper presents a study investigating the effects of the Water Education Training (WET) program on students' performance in science. The WET Program is an after school program using an interdisciplinary approach which has three main objectives: improving science concept knowledge, writing performance, and attitudes toward science and writing.…

This guide provides basic information on the Clean Water Act, watersheds, and testing for water quality, and presents four science lesson plans on water quality. Activities include: (1) "Introduction to Water Quality"; (2) "Chemical Water Quality Testing"; (3) "Biological Water Quality Testing"; and (4) "What Can We Do?" (YDS)