Four compulsory introductory activities involving learning to use a stream tray, observing the relationship between water speed and entraining, transporting and depositing sediments, studying the formation of sedimentary rocks, and examining several types of sedimentary rocks are completed by all students using the unit prepared for Australian…

Presenting data on amphibians, this article details, via chart, where and when to find toads and frogs for school use. (JC)

In Clinton, Iowa, some fourth graders have benefited from a different sort of program, setting up what they have labeled their "morgue". Article described how the students brought some excitement to learning about the insides of their bodies. (Editor/RK)

Combines coordinate systems, planetary positions, use of the celestial globe, and synodic period in a graphing exercise. Information is given to duplicate an occurrence of 1940 in which five naked eye planets were simultaneously visible. (CP)

Provides directions for a three person rotating reference system. A series of experiments used with the apparatus is also described. (CP)

Discussed are strobe photography, making a storage unit, improving a lecture-table meter, and making an electrical discharge tube. (RH)

Simple soap bubbles can be used to have children make educationally valuable discoveries about how materials behave, what their properties are, and how they can be used or changed. (Author/BB)

Describes care and feeding of Anoles (chameleons), including suggested classroom activities. (BB)

A discussion of the "Martian Canal" controversy and how it can be used to help students understand the workings of science is presented. (MDR)

Ideas are presented for demonstrating the kilometer to school children. (BB)

Elodea is an attractive plant, well suited for classroom aquaria. This article describes the collection, care, and maintenance of this plant. (BB)

Rain observation activities are described for preschool and lower-elementary children. (BB)

The study of energy flow in a woodland ecosystem was attempted during a seven-day field course, using simple equipment. It is possible to quantify or estimate many of the components, and the methods used are described. Suggestions are made for maximizing education return from the available time and labor. (Author/BB)