Described are several organometallic experiments for the homogeneous hydrogenation of alkenes that could be used in schools. Procedures and expected results are detailed. (RH)

Discusses how two teacher functions can be used to guide science discovery learning and enhance concept formation in the preschool: (1) nurturing children's curiosity, and (2) providing active learning experiences that extend and clarify common events in the lives of young children. (CS)

This packet of space science instructional materials includes five issues related to the planet Jupiter. Each issue presents factual material about the planet, diagramatic representations of its movements and positions relative to bright stars or the earth, actual photographs and/or tables of data collected relevant to Pioneer 10, the spacecraft…

The relationship of the mechanics of a falling chimney and a breaking pencil point is presented. A device is discussed that uses a pocket calculator coupled to a telescope to record the angle at which the telescope is pointed. (BB)

A special tear-out-and-duplicate section provides activities for increasing environmental awareness. (RW)

As an alternative guide to science teaching, a generalized theory of scientific observation defined in terms of human intentions and purposes is offered. The generalized theory, while based on assumptions different from those of the science education theory, can still account for the plausibility of many aspects of that theory. (JN)

This educator guide provides background information on Wilbur and Orville Wright and activities on aeronautics that provide templates for building the 1900, 1901, and 1902 Gliders and the 1903 Flyer. Activities include: (1) Early Aviation; (2) Your First Interview; (3) Your First Report; (4) Build a Model of the 1900 Glider; (5) Questions on the…

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)

This publication is the result of the Texas Parks and Wildlife Division's (TPWD's) commitment to education and the fertile partnerships formed between TPWD biologists and educators. This activity book brings together the expertise and practical knowledge of a classroom teacher with the technical knowledge and skills of a TPWD biologist and artist.…