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)

Describes a procedure for the separation of coleus pigments using simple supplies and equipment from home and the supermarket. (MA)

Presents experiments to introduce students to the phenomenon of biological rhythmicity and to reinforce the fact that there are differences in the physiology of human beings. (Author/MA)

Presents a science unit for fourth graders on fungi. Included are instructions for making a mold garden. (SJL)

Presents a play or dialog appropriate for beginning college students that introduces some basic ideas regarded as part of Aristotelian physics. (CS)

Presented are 25 inexpensive activities which will give students hands-on and creative experiences in botany, geology, meteorology, and ecology on or near the school grounds. (Author/SJL)

Presents nine physics notes for British secondary school teachers. Some of these notes are: (1) speed of sound in a steel rod; (2) physics extracts-part four (1978); and (3) a graphical approach to acceleration. (HM)

Presents demonstrations for the following: laboratory safety in using oxygen; and cobalt complexes in equilibrium. (CS)

Describes some undergraduate laboratory experiments in acoustics which involve the analysis of speech and musical instrument sounds and the general analysis of the frequency range of complex sounds. (HM)

Reports procedures for a college experiment in radioisotope chemistry that involves ion-exchange of 51-Cr. (CS)

Describes an undergraduate laboratory experiment that demonstrates the value of shift reagent use in producing a first-order spectrum of trans-retinol. (CS)

Presents the "extended discretion" approach as another dimension to conventional biology laboratory investigations. Results of a study comparing this approach to BSCS investigations indicate that tenth-grade students can handle increased discretionary demands related to their learning activities, thus encouraging responsibility and…

Describes an autumn field trip experience for ecology students at Kirkland Lake Collegiate and Vocational Institute in northern Ontario, Canada. (CS)

Describes a program in BASIC-11 that explores the relationships between various variables in the circulatory system and permits manipulation of several semiindependent variables to model the effects of hemorrhage, drug infusions, etc. A flow chart and accompanying sample printout are provided; the program is listed in the appendix. (CS)

Presents an elementary teaching unit on NASA's space program, including teacher background information, suggested student activities, and a list of resources. Appended is a transcript of an interview conducted by elementary children with astronaut candidate Sherwood (Woody) Spring. (SJL)