Describes a simple form of chromatography that illustrates several concepts of chemistry and physics and requires only inexpensive and readily available materials. (PR)

A teacher describes the procedures used by students to mount skeletons of small animals. Equipped with ziplock bags and papain, students can make the cumbersome task of mounting more time efficient and easy. (ZWH)

A major contributor to our understanding of the adaptation of all organisms to the physical environment is physiological ecology. Described here is an inexpensive, reliable and simple experiment to aid in helping students to understand better the acclimation process. (ZWH)

Two professors assert that it is not enough to simply tell students that all living organisms are mutually dependent. Describes an activity that allows students to become members of a food web and results in a greater understanding of and appreciation for the interdependencies of living things. Ideas for extension are provided. (ZWH)

Describes using Gooyuk--a substance made from corn starch and water--to create a wave tank with slow waves. Explains how to use the wave tank in instruction. (PR)

Presents an integrated math/science activity in which families work together at an activity station and design and make a track for a marble to travel down using rules attached to a board. (MKR)

Explains how electrical conductivity (EC) can be used to measure ion concentration in solutions. Describes instrumentation for the measurement, temperature dependence and EC, and the EC of common substances. (PR)

Describes hands-on activities with fungi that may provoke the curiosity of early adolescents and increase their enjoyment and understanding of a vast, important portion of botany. Some of the activities may be conducted during the winter months when most fieldwork ceases. (PR)

This article is a reproducible page for students in grades four through six. The stated objective is the student will organize information about unfamiliar animals and infer other information. Students read clues about five newly discovered species and use a chart to organize this information in a more meaningful way. (PR)

Provides an activity which measures the heat transfer through an insulated cylindrical tank, allowing the student to gain a better knowledge of both the physics involved and the working of spreadsheets. Provides both a spreadsheet solution and a maximum-minimum method of solution for the problem. (MVL)

This article describes a teaching aid made from four colored foam balls mounted on a stiff wire circle used to teach about the changing seasons and earth temperature fluctuations. The spheres represent the Earth at the solstice and equinox positions. (MVL)

Examined the process by which 79 nursery school pupils age 4 and 5 years discovered the properties of magnetism while playing with magnets and various metallic and nonmetallic objects. Found that the older children were more likely to discover magnetism on their own, while the younger children required the encouragement of their teacher to uncover…

Describes strategies that encourage children to find their own answers to questions--their own or an adult's--through investigation. Also gives suggestions for activities involving finding answers and recording data in different classroom learning centers in areas such as art, block play, music, food, science, and dramatic play. (HTH)

Uses a TI-82 graphics calculator to model the air drag of plastic, wood, cork, and foam balls during projectiles experiments. Provides equations and typical data table. (MVL)

Describes the Macintosh equipment and software necessary to obtain and use digitized video for motion analysis. Also provides a simple strategy for undertaking such an analysis. (MVL)