Provides instructions for producing a spectrum in the secondary science classroom. Offers suggestions for using the spectrum and discusses how to make a rainbow using a garden hose or houseplant sprayer. (JN)

Describes water-related activities in an elementary school science project. Activities focus on mini aquaria, permanent aquaria, water toys, sea power, imagination, and village ponds. (DH)

Provided are activities and demonstrations which can be used to teach infants about the nature of air, uses of air, and objects that fly in the air. The latter include airships, hot-air balloons, kites, parachutes, airplanes, and Hovercraft. (JN)

Several activities related to color are discussed. These include placing different colors on a disk which, while spinning, appears to be white. Also discusses complementary and primary colors. (JN)

Summarized are general procedures for and student reactions to three different science units for primary students. Topics included are timing things, yogurt pot telephones, and parachutes. (DC)

Describes water-related activities in an elementary school science project. These activities focus on electric generators, rainfall, erosion, floating, water conservation, and other areas. Brief comments on developing such a project are included. (JN)

Lists 25 energy activities and describes two experiments (materials needed and procedures used included) for secondary/middle school students. Like activities for younger children listed in part 1 (appearing in Vol. 65, No. 229), these activities are designed to provide concrete experiences for teaching various aspects of the energy concept. (JM)

Describes simple, electrical projects with dry cell batteries and lamps designed to teach children about conductors, insulators, and switches. Instructions for construction of circuits, the science ideas in each project, and suggestions for extending each of the investigations are included. (JM)

Suggests some of the basics and reasons for teaching balance. Explains how the concept of a cantilever can be used. Describes 25 activities for observing, testing and learning about balance. (CW)

Provides background information and suggestions for concrete experiences to help nonscientists teaching 5- to 13-year-old children. Includes a list of 25 ideas for energy activities and a list of 10 key energy concepts. (JM)