Describes soil mechanics as quite interesting and a pedagogically useful topic in which to present and analyze many concepts in physics. (Author/CCM)

Presents an alternative experimental arrangement that results in a considerable cost savings by reducing the number of sensors and other apparati required while giving excellent quantitative results for comparison with theory. (Author/CCM)

Presents the concept of using Einstein the man as a way of generating interest in the study of physics among students. Finds that it provides an instantly recognizable face for science, thus a gateway to the subject through the discussion of the man. (Author/CCM)

Presents the concept of interdependence and outlines the use of a concept approach in environmental education. Describes two activities that can be applied to an existing curriculum. (Author/CCM)

Describes an open-ended investigation in which students have to look into a feature of lens performance that is not commonly found in textbook materials on optics. Presents explanations and sample results. (WRM)

Describes a project in which students create wind machines to harness the wind's power and do mechanical work. Demonstrates kinetic and potential energy conversions and makes work and power calculations meaningful. Students conduct hands-on investigations with their machines. (DDR)

Argues for a more flexible approach to teaching the scientific method in elementary schools. Recognizes the nonsequential nature of students' thinking when they have been engaged and excited by a topic of inquiry. (DDR)

Describes one way that a school and community in South Carolina are meeting Goal Eight of Goals 2000 by involving parents and their children in two family science programs called the World of Wonders and Families Experiencing Science Together. (DDR)

Introduces a geography course that uses a service learning approach to study the Dog River Watershed in Alabama. (YDS)

Explains how hands-on science activities can be done in a class designed as a lecture setting. Uses the collapsing can activity to demonstrate the birth of a black hole. Evaluates student responses to the hands-on approach. (YDS)

Recommends using online molecular databases as teaching tools to illustrate evolutionary questions and concepts while introducing students to public molecular databases. Provides activities in which students make molecular comparisons between species. (YDS)

Describes a method to collect seeds that are dispersed from weeds while avoiding some outdoor hazards such as rough terrain or animals. Describes a plan for creating a weed fishing pole and includes a materials list. (SAH)

Describes a method used to teach the concept of geologic time to introductory geology students using an inquiry-based approach. Students work in teams to obtain rock samples that are used to interpret the geologic history of a region. (SAH)

Describes a set of laboratory activities in which students construct a model for the relationship between potential difference (measured in volts) and current (measured in amperes) in a DC circuit with a single resistor. (SAH)

Points out the uses of remote sensing in different areas, and introduces the program "Reflections on Earth" which provides access to basic and instructional information on remote sensing to students and teachers. Introduces students to concepts related to remote sensing and measuring distances. (YDS)