Describes an introductory lecture-demonstration for a physics class. The device transports a small steel ball from a starting point to a finishing point; along the way the ball goes through a number of steps. (RH)

Directions are given for student learning activities on illusions, shadows, the spectrum, and colors. (DT)

A light flasher was developed for use with the open-shutter photography technique in elementary-mechanics experiments. Details are given of its design and construction. Five experiments, for the elementary mechanics laboratory, which use flasher units are described. (DT)

Discusses the offering of a one-week "fun" lab course designed for students to further their professional competence, offer intellectual enrichment, advance their avocational interests, or provide personal enjoyment. (CC)

This document is an instructional module package prepared in objective form for use by an instructor familiar with alkalinity, volatile acids and carbon dioxide determinations for an anaerobic sludge digester. Included are objectives, instructor guides, student handouts and transparency masters. This module considers total and bicarbonate…

This document is an instructional module package prepared in objective form for use by an instructor familiar with multiple tube and membrane filter techniques for determining fecal coliform concentrations in a wastewater sample. Included are objectives, instructor guides, student handouts and transparency masters. This module considers proper…