Simple laboratory investigations are given which expose elementary students to optical crystallography techniques. Procedures and materials are designed for sixth-grade students. (SA)

Describes an elementary school science activity in which students conduct experiments to verify their hypotheses relating to the effect of salt and other chemicals on the melting point on ice. (JR)

Describes an experiment, conducted by sixth-grade students, with mice that demonstrates the importance of a balanced diet. (JR)

A multidiscovery, open-ended, sciencing experience appears to have implemented nearly the full spectrum of cognitive, affective, and psychomotor objective domains.'' (Author/DF)

Simple activities are described which use paper clips and straws or a board to demonstrate the properties of the lever. (BB)

Describes a few activities designed to give students an opportunity to investigate man-made meteorites.'' (Author/DF)

Explains the idea that a half-length mirror is sufficient to view the whole length, regardless of distance. (GA)

Explains some middle school science demonstrations and experiments: included are a simplified circuit board, a scheme for the identification of plastics, a soot-free bunsen burner, science in a packet of cornflakes, and perceptual ambiguities with a "Chinese Compass." (GA)

Describes student activities with mercuric oxide and mercury that help them to form models of the solar system and its creation. (JR)

Describes a simple method of demonstrating the Bernoulli effect, by spinning a length of rubber tubing around one's head. A manometer attached to the stationary end of the tube indicates a reduction in pressure. (JR)

Describes construction of a pinhole camera with simple materials and five experiments to be conducted, as well as instructions in creating a working camera obscura. (BR)

Weights suspended from a lever arm separate evacuated hemispheres allowing estimation of atmospheric pressure to within five percent of the barometric reading. An illustration and a reference to von Guericke's demonstration are provided. (GH)