Uses the television series "Star Trek" as an example to describe the impact of audiovisual images on students' perceptions of science, technology, and scientists. Describes activities to examine views that teachers and students hold toward the image of scientists on television and the overall portrayal of technology in various television…

Describes an activity in which students try to assess the problematics of modifying brackish saline water to grow high-quality crops. Students grow seedlings in solution culture over a two-week period to learn about the effects of salts, ions, and essential plant nutrients. (WRM)

Presents several activities designed to teach students about the characteristics, classification, life cycle, and uses of the luffa (gourd). (WRM)

Presents the activity of building a cotton-ball catapult collaboratively. Uses available spare parts and stimulates students to use their knowledge, skills, and past experiences. (YDS)

States that the ecological role of Sphagnum species in peatlands is enormous. Presents a cation exchange experiment and background information on the characteristics and economic importance of Sphagnum. Contains 42 references. (DDR)

Describes a curriculum plan in which students learn about acid rain through instructional media, research and class presentations, lab activities, simulations, design, and design implementation. Describes the simulation activity in detail and includes materials, procedures, instructions, examples, results, and discussion sections. (SAH)

Presents a classroom activity that tests students' parapsychological powers and can demonstrate a number of methods of science, including the processes of formulating a hypothesis and rigorously subjecting the hypothesis to testing. (DDR)

Introduces an interdisciplinary activity using a cola drink. Describes the lesson plan, including objectives, procedures, evaluation, projects, and conclusions. Provides two laboratory sheets containing problem, hypothesis, materials, procedure, observations, and conclusions, vocabulary table, and data table. (YP)

Presents an environmental science activity designed to enhance students' awareness of the hazards of plastic waste for wildlife in aquatic environments. Discusses how students can take steps to reduce the effects of plastic waste. (WRM)

Presents an activity designed to stimulate student interest and facilitate the study of microorganisms. Focuses on an epidemic situation in which students play the role of epidemiologists. (DDR)

Presents a lesson plan about greenhouse effect and global warming. Includes diagrams and graphs from which students are asked to make inferences. Provides background information about how energy enters and leaves the earth system, the energy budget, consequences of obstructing the energy balance, and the greenhouse effect. (three references) (MCO)

Presents an unconventional assessment in the form of a card game for use in evaluating student understanding of severe weather-related concepts. Discusses the theory behind using educational games for instruction and assessment. (DDR)

Focuses on an extended learning experience with worms as the main topic in which students collect and organize information and choose an experimental question. Based on the constructivist theory of learning. Contains 17 references. (DDR)

Describes a simulation activity based on the hypothesis that human habitation on Mars is a realistic future public policy issue and a reasonable consequence of space exploration. Uses cooperative learning. (DDR)

Describes a project where students were involved in finding the most suitable site for a landfill in their community. This two-month project was conducted using team teaching. Two twelfth grade geoscience classes were involved. (PR)