Activities that use a common fluorescent light as a strobe light to make things appear to slow down, speed up, or stand still are presented. Background information on strobe lights and directions for the activities are provided. (KR)

Activities in which students determine the half-life of a substance using M&Ms, solve a crime using chromatography, and calculate the speed of a toy car are presented. The activities include the topic, an introduction, the time needed, a list of materials, safety precautions, procedure, analysis questions, and teacher's notes. (KR)

Describes simple-to-construct instructional aids to be used in providing an intuitive approach to acceleration. Introductory mechanics involving velocity, distance and acceleration are discussed. (CP)

Describes an experiment where elementary students determine the optimum angle of inclination for the greatest amount of distance a marble will roll when accelerated down an inclined plane. (PR)

Explains reasons why students have misconceptions concerning pendulum swings. Presents a series of 10 pendulum task cards to provide middle-school students with a solid mental scaffolding upon which to build their knowledge of kinetic energy and pendulums. (PR)

Describes how students can make and use Hooey Machines to learn how mechanical energy can be transferred from one object to another within a system. The Hooey Machine is made using a pencil, eight thumbtacks, one pushpin, tape, scissors, graph paper, and a plastic lid. (PR)