A brief lesson is presented on ways in which things become clean or are cleaned. Two hands-on experiments are described: one in which students learn to sequence, and the other in which students learn about the differences between fact and opinion. (CB)

This book presents science activities investigating the chemical changes and reactions with powders that are used in baking. Activities include: (1) Mystery Powders; (2) Find the Fizz: Discover the Secret of Baking Powder; and (3) A Feast for Yeast and Cheese: Behold the Power of Chemistry. (YDS)

Students are able to experience cellular respiration in action and become more informed about the environment by creating compost. This article describes an activity that brings a natural process into the classroom. (ZWH)

This booklet, one of six in the Living Things Science series, presents activities about evolution which address basic "Benchmarks" suggested by the American Association for the Advancement of Science for the Living Environment for grades 3-5. Contents include background information, vocabulary (in English and Spanish), materials,…

This booklet, one of six in the Living Things Science series, presents activities about ecosystems which address basic "Benchmarks" suggested by the American Association for the Advancement of Science for the Living Environment for grades 3-5. Contents include background information, vocabulary (in English and Spanish), materials,…

Described is a student preparation of YBa2Cu3O8-x, a classroom demonstration of its superconductivity, and an analytical chemistry experiment dealing with the oxidation state of copper in the material. (RH)

Described is a workshop for grades 5-8 school teachers and students related to synthetic polymers. Participants become familiar with polymer theory and practice experiments they can use in class. Sources of materials used in the workshop are listed. (RH)

Presented is the index to the January-December 1976 issues of The Science Teacher (Volume 43). Both author and title indexes are included. (SL)

This book explains science concepts in a manner in which non-science teachers and parents can understand and learn science through activities. The concepts covered in this book include energy, simple machines, temperature, and heat transfer. Each chapter is supported with internet resources available at SciLinks and ends with a summary and…

Microgravity-the absence or reduction of some of the effects of gravity-is an important attribute of free-fall. In microgravity (often incorrectly called zero-g), water no longer flows "downhill" and neither do smoke or steam bubbles rise. This changes a number of chemical and physical activities. Experiments in combustion, fluid behavior,…

Teachers are provided with several experiments for primary students that address concepts related to the properties of air, sound, and water. (IAH)

Describes the procedures for starting and maintaining a bee hive to enhance any lesson on the study of bees. (ZWH)

Presents one simple rule to guide students in determining the number of significant figures in any value in science. (ZWH)