Introduces the Kids and Chemistry program which aims to increase student interest in science. Features activities for students on the classification of unknown materials and chromatography. (YDS)

Provides an activity that focuses on the color changes of leaves and reinforces lectures in ecology, plant physiology, and the scientific method. (ASK)

Describes a microbiology exercise that is designed to expose students to the world wide web. Introduces a molecular biology quiz site and National Center for Biotechnology Information (NCBI). Provides a list of molecular biology sites on the Internet. (YDS)

Modifies an extended lab activity from a cookbook approach for determining the percent mass of water in copper sulfate pentahydrate crystals to one which incorporates students' prior knowledge, engenders active mental struggling with prior knowledge and new experiences, and encourages metacognition. (Contains 12 references.) (ASK)

Develops and modifies a series of 11 lab activities designed to strengthen and build science laboratory and inquiry skills for students in physical science classes. Includes a figure that summarizes the sequencing skills and concepts developed by these lab activities. (ASK)

Explains the teaching opportunities, especially in science activities and laboratory experiments, of using technology in science classrooms. (YDS)

Uses a theatrical approach to implement dramatization into science classrooms. Explains how to use dramatic science in and outside of the classroom with different scenarios. (YDS)

Describes a chemistry demonstration on freezing point depression wherein students investigate the effects of adding various substances to ice water. Includes instructor information and a student activity sheet. (YDS)

Presents a 10-hour chemistry experiment using copper sulfate that has three steps: (1) purification of an ore containing copper sulfate and insoluble basic copper sulfates; (2) determination of the number of water molecules in hydrated copper sulfate; and (3) recovery of metallic copper from copper sulfate. (Author/YDS)

Recommends integrating different applications to serve the need for students to know the relevancy of the course of their future. Uses different and unrelated phenomena to teach equilibria. Introduces six phenomena; (1) Killer Lakes of Cameroon, (2) Chicken Breath, (3) The Permian Ocean, (4) Snow Line, (5) Hard-Water Boiler Scale, and (6)…

Compares the effects of three experiential science lessons in meeting the objectives of the Colorado model content science standards. Uses Kolb's (1984) experiential learning model as a framework for understanding the process by which students engage in learning when participating in experiential learning activities. Uses classroom exams and…

Describes an activity comparing incandescent bulbs and LEDs powered by dc and ac voltage sources to illustrate properties of matter and the interactions of energy and matter. Includes both instructor information and student activity sheet. (Author/YDS)

Explains how to use galvanotaxis and mutagenesis experiments to study Paramecium's swimming behaviors and ion channel functions. (YDS)

Discusses students' misconceptions on evaporation of water considering the errors in geoscience textbooks. (YDS)

Describes a molecular biology laboratory in which students study the role of the enzyme polygalacturonase in the softening of tomatoes during ripening by developing their own hypotheses and designing their own experiments. (MM)