The author discusses how plumes of smoke in the air can give us an indication of how atmospheric temperature varies with height. (MN)

Information on the solar eclipse of February 26, 1979, is presented, along with techniques for viewing eclipses. (BB)

Describes an experiment illustrating a lesson in wave interference using bright colors in a soap film. Illustrations provided. (MA)

This guide presents a module for college students on ribonucleic acid (RNA) and its role in biology. The module aims to integrate the latest research and its findings into college-level biology and provide an opportunity for students to understand biological processes. Four activities are presented: (1) "RNA Structure: Tapes to Shapes";…

The zonation of plants within a salt marsh environment is detailed via illustrations and scientific nomeclature for purposes of encouraging outdoor educators to use the salt marsh environment as a learning laboratory. (JC)

Presents both a geometric model of the hologram and a step-by-step guide to the procedures involved in making a hologram. (Author/CP)

Provides an analysis of the forces causing the erratic motion of a knuckleball. Reveals the manner the ball should be thrown to provide maximum deflection. (Author/CP)

Photographs show three simple demonstrations of deceptive centers of gravity. (CP)

The circular motion observed when water drains into a smooth opening is analyzed. This action, as well as cycloidal atmospheric motion, is explained as the result of rotation of the coordinate system. (CP)

Provides a brief account of the discovery and theory of antimatter and describes several activities relevant to the study of antimatter on the secondary level. (MLH)

A classroom experiment is proposed in which students can mate a banded or spotted convict cichlid with a pink convict cichlid and observe the markings of their "children" and "grandchildren" as a way of illustrating Mendel's Laws of Dominance and Segregation. (MN)