Finds that many restoration projects have attempted to replace the native species, but project planners often have an imperfect understanding of the plant communities they are trying to re-create. Argues that when students join these projects, they may receive an inaccurate impression of local ecosystems. (Author/CCM)

Discusses vandalism to schoolyard habitat site areas. Finds that instances of vandalism are few and the threat of vandalism can be kept to a minimum while students, teachers, and community members enjoy a hands-on, outdoor learning opportunity. (Author/CCM)

Provides a range of practical suggestions and experiential advice for organizing a science exposition. Presents three case studies of school expos. (CCM)

Presents a science activity on modeling a bridge to teach about the forces of tension versus compression. The activity is designed for middle school students. (YDS)

Features astronomy activities that teach the value and limitations of inferring. (YDS)

Introduces a high school science curriculum that embodies inquiry-based genetics, evolution, and astronomy. Presents two astronomy units of scientific modeling. The first activity involves a black box to explain a hidden mechanism's effect on the outflow of water. The second activity involves the development of celestial motion models to explain…

Examines motivational methods among undergraduate chemistry students and identifies differences between methods of persuading students to prepare for laboratories. Methods include quizzes, scheduled presentations, unscheduled presentations, and a control method. (YDS)

Presents a project for modeling cellular ultrastructure for 14-17 year old students that helps to develop concepts of measurement and scaling in addition to supporting student understanding of cell biology. (Author/YDS)

Explores different solubility processes and related issues, including the second law of thermodynamics and ideal mixtures, real liquids, intermolecular forces, and solids in liquids or gases in liquids. (Contains 22 references.) (ASK)

Surface tension is a fundamental obstacle in the spontaneous formation of bubbles, droplets, and crystal nuclei in liquids. Describes a simple overhead projector demonstration that illustrates the power of surface tension that can prevent so many industrial processes. (ASK)

Discusses the role of physical enactment in developing an understanding of distance, time, and speed. Provides several examples from classroom experience. (MM)

Describes students' activities in introductory chemistry to fulfill their requirement for service learning. Explains the investigation of the causes for the foul taste of drinking water coming from a specific fountain. (YDS)

Introduces electrophoresis activities developed for chemistry and biology courses in which students identify the food, drug, and cosmetic identity of the food dyes used in the coating of candies. (YDS)

Presents an activity for students to determine the sex and age of an individual from a collection of bones. Simulates some of the actual procedures conducted in a forensic anthropologist's lab, examining and identifying bones through a series of lab activities. (Author/ASK)

After reading a newspaper article on Alzheimer disease, an incurable medical problem involving gradual and debilitating loss of memory, students examine the key elements of the scientific method as conveyed in the story. During their analysis students explore the workings of the nervous system and consider the role of animal model systems in…