Describes the use of the "Arcane (mysterious) Can" which is a "tin" can which is permanently sealed, both air- and water-tight, by means of a home canning device. The canning procedure permits the use of a large variety of materials which can not be utilized in the ordinary mystery box. This Can activity is valuable for…

Contains four articles about various aspects of science education. Addresses a graded assessment scheme in Great Britain, factors affecting school science achievement in Nigeria, the need to address differentiation in science curricula, and the encouragement of developing science hypothesis in elementary schools. (TW)

Clarifies the idea of prediction in science teaching by distinguishing between the two extremes of guessing and making logical deductions. Discusses the use of predictions in testing teachers' and students' explanations. (MDH)

Designed to use simple materials that can be found in almost any household, this document provides elementary teachers and students with activities and worksheets that deal with basic scientific concepts. The activities are intended to help students form and test their own hypotheses. Each topic in the booklet is addressed through a simple…

Describes laboratory activities which encourage students to develop and test hypotheses related to the effects of changing environmental factors on plant growth. Uniform (fair) testing and careful observation and measurement, supplemented by graphing, are emphasized as important in reaching valid conclusions. (JM)

Suggests that elementary school students should be introduced to science research by involving them in group projects. Argues that this type of collaborative approach is more motivating for the students, and produces less anxiety and a better understanding of the steps involved in scientific methodology. (TW)

Describes how students can make and use Hooey Machines to learn how mechanical energy can be transferred from one object to another within a system. The Hooey Machine is made using a pencil, eight thumbtacks, one pushpin, tape, scissors, graph paper, and a plastic lid. (PR)

Describes several tests for determining dominance of children's hands, eyes, feet, and thumbs. Discusses the relationship between hemispheric brain dominance and dominant sides of the body. Suggests that raising questions about generalizations can lead to new learning. (TW)