Provides instructions for making several miniature substitutes for more expensive supplies and science equipment. (CP)

Stresses briefly the need for individuals' actions for controlling the environmental pollution. A number of projects are suggested for teachers to involve children in this area. Simulated discussion groups of sellers'' and consumers, use of pictures, onion juice, and a water filtration contest are a few of the sources used. (PS)

A simulation exercise involving being transported to another planet forces students to use different instruments, devices, and units for measuring. (CP)

Presents four science lessons based on food preparation: building an electric hot dog cooker; examining a microwave oven; discovering why popcorn pops; and making soda pop. (SJL)

Applications of wheels are shown to be an invaluable tool in teaching the processes and technology of science. (DF)

The function of filters in various situations is discovered through activities with common objects, machines, and organisms. (DF)

Twelve science activities involving the common paper food bag and the small plastic food bag are described. (DT)

Suggests an activity designed to stimulate student interest in optical illusions. By preparing posters of a number of optical illusions and mounting them on the classroom wall, many students will be motivated to seek an explanation for these phenomena. (JR)

Describes eighteen ways in which balloons may be used as a teaching tool in demonstrations and discovery exercises in science. (JR)