Presents research results on photosynthetic, carbon monoxide utilizing bacteria. Discusses applications of the research and offers three sets of experimental procedures and data that students analyze to determine which bacterium from a soil sample uses carbon monoxide fastest. (Contains 21 references.) (MDH)

The data for classroom activities in this article are divided into two parts. The first introduces some aspects of population pressures on the earths systems. The second examines the interplay of economic, political, and social systems as they affect population growth. (Author/DE)

The purpose of this research project was to compile and analyze data concerning the composition and geographic distribution of South Africa's population for the purpose of future educational planning to meet the needs of four population groups. This document contains statistics and conclusions on: (1) the role of population shifts and…

Presents activities for the K-2, 2-5, 5-6, and 5-8 levels that require students to analyze information graphically. Asks the students to discuss, describe, read, and write about the graphs and the information they contain. Supplies accompanying worksheets. (MDH)