Experiences and experiments with mirrors will spark pupils' imaginations while providing insights into the nature and behavior of light. (Author/DF)

Students need a wide range of experiences in considering the biological, social, economic, and psychological aspects of crowding on their lives and on their community. (DF)

Presents three experiments exploring aspects of the greenhouse effect. Topics and discussion includes radiation in energy transfer, emissivity and absorptivity, the irrelevance of reflectivity, a digression on insulators and convection, climate change, and radiative energy balance. (MCO)

Describes the procedures in growing thymol crystals and suggests eight activities which can be carried out by students in examining crystals. (BR)

A seventh-grade botany project involving experiments with beans is described. (DT)

Presents two experiments about ozone related topics. The first experiment examines the effect of sunlight on newsprint and relates this to human skin. The second demonstrates how chemicals, and specifically chlorofluorocarbons travel through the air. (MCO)

Presents an activity in which students make a simulated solar panel to learn about the principles behind energy production using solar panels. Provides information about how solar panels function to produce energy. (MCO)

Discusses a phenomenon called Extrasensory Perception (ESP) whereby information is gained directly by the mind without the use of the ordinary senses. Experiments in ESP and the basic equipment and methods are presented. Statistical evaluation of ESP experimental results are also included. (HM)