This article explores heterogeneity as fundamental to learning. Inspired by Bakhtin's notion of heteroglossia, a design team consisting of an experienced classroom teacher and 2 researchers investigated how a class of 3rd and 4th graders came to understand disciplinary points of view on heat, heat transfer, and the particulate nature of matter.…

In this inquiry-based activity, the usefulness of thin-layer chromatography (TLC) to visualize the difference between spearmint and peppermint is explored. The experiment may be used in any class where TLC is discussed from high school to college. We have used this activity with science majors in an organic chemistry laboratory, with non-science…

Describes a summer course in chemistry conducted by college teachers for children aged 9 through 12. The children were provided with simple laboratory equipment and performed actual experiments and recorded the results. A few demonstrations were given, but lecturing was kept to a minimum. (MLH)

Describes a science laboratory experiment that can be done at home with the assistance of parents or older siblings. It is offered as an alternative to reading assignments or answering questions for homework. Parental assistance is encouraged. (SA)

This book presents science experiments that can be conducted in the kitchen. Contents include: (1) "Safety First"; (2) "Chemistry in and Near the Kitchen Sink"; (3) "Chemistry in the Refrigerator"; (4) "Chemistry on the Stove"; (5) "Chemistry on the Kitchen Counter"; and (6) "Further Reading and Internet Addresses." (YDS)

Describes a year long laboratory program for third, fourth, and fifth graders. States the goal of the program is to demonstrate what chemistry is, how it is done, and why it is fun and interesting. Provides a syllabus of the experiments and lists educational objectives. (MVL)

Discusses development and presentation of a chemical demonstration show for grades 1-6 students. Includes major concepts presented and experiments used in the hour-long show. Concepts/experiments focus on the show's theme: the nature of chemical change. Safety factors involved when conducting demonstrations with children are addressed. (JN)

Describes a paper chromatography experiment designed for fifth and sixth grade students. Utilizes common materials that need no special ordering. Background information, conclusion questions, and sample chart are included. (MA)

This book contains 25 experiments designed to help students understand some of the science used every day. Each experiment includes a list of materials, a series of easy-to-follow steps, an explanation of the scientific principle demonstrated, and additional scientific facts and information. No special or expensive materials are required.…

Contains a series of laboratory exercises students can do to introduce them to the basic concepts and techniques of water purification. (Author/MA)

Describes "Parents and Children for Terrific Science (PACTS)" program sponsored by the American Chemical Society's Education Division for encouraging the development of family science projects at the elementary and intermediate school levels. Discusses some examples and the results of the project. (YP)

Describes four activities to analyze drinking water for its pH, hardness, turbidity, and conductivity. (MDH)

Describes a magic show designed to encourage young children in physics and chemistry. Discusses how a little "razzle-dazzle" can effect children positively. Tells how to organize and perform a magic show. Details six tricks that focus on principles of chemistry or physics. (CW)

After providing information on elementary schooling in Yugoslavia, discusses ecological topics and activities used to raise the awareness of elementary school students about the level of pollution in the environment and the dangers of an increasingly polluted environment. Students' keen interest in chemistry and the chemical experiments was noted.…

Presents activities that utilize balloons to encourage students to explore questions related to scientific concepts. Concepts explored include light, heat, charged ions, polarization, and the sense of smell. (MDH)