Presents a science activity that is a combination of guided-inquiry and open-inquiry in which students investigate crayfish. (YDS)

Presents a case of a baby born with the genetic condition holoprosencephaly in which students explore the "Sonic hedgehog" gene, signal transduction, and the ethics of body and tissue donation. Presents a two-part assignment that features students writing an informed consent document that explains the science behind this congenital abnormality,…

Explores the fundamental principles of memory, eyewitness accuracy, and police questioning techniques in witness identification in a criminal case. Studies the details of an actual series of attacks and the subsequent police investigation to illustrate that memory is a reconstructive process rather than an accurate recording of events. (Author/ASK)

Presents a laboratory exercise that allows students to investigate the principles of hormone release from endocrine cells, which is highly relevant to students' everyday lives. (Contains 17 references.) (ASK)

Presents a laboratory sequence that allows students to use traditional comparative methods, scientific methodology, and modern molecular data bases to test hypotheses of evolutionary relationships. (Contains 13 references.) (ASK)

Many pupils will be familiar with the ideas in "2001: A Space Odyssey" but few will have considered the physics involved. Simple calculations show that some of the effects depicted in the Space Station and on the Discovery are plausible but others would be impractical. (Author/ASK)

Many students today are profoundly interested in the sustainability of their world. Introduces Green Chemistry and its principles with teaching materials. Green Chemistry is the use of chemistry for pollution prevention and the design of chemical products and processes that are environmentally benign. (ASK)

Reports on the use of 3D topographic models to teach Earth Science. Relates how students at a middle school made cardboard cut-out models to illustrate plateaus, a volcanic mountain, and other landforms. Provides teaching suggestions for the activity and a grading rubric. (MM)

Introduces a unit consisting of two lessons on paper and recycling. Investigates the properties of recycled paper and includes a paper making activity. (YDS)

Presents a laboratory experiment intended for blind students that can be used to demonstrate acid-base reactions, carbonate reactions, or endothermic reactions. Includes both instructor information and a student activity sheet. (YDS)

Describes a laboratory experiment in which students identify 11 white solids readily available in drugstores and supermarkets. Investigates solubility, pH, copper reduction, evolution of carbon dioxide bubbles, formation of starch-iodine complex, and formation of an insoluble hydroxide. (YDS)

From an early age young children actively engage informally in acquiring fundamental concepts and process skills that form a basis for mathematical understanding. Quite logically, questions will arise during planning when young children first encounter a more formal learning environment: what strategy should one use to develop mathematical …

P.H.Y.S.I.C.S. (Physics Headstart Yearlong Science Inquiry at Central School) is a series of inquiry investigations and science activities designed to motivate students and teachers and develop a love of physics in our rural agricultural community. The program?s approach infuses physics into the science curriculum while capitalizing on our…

Subjects like Earth science often rely on "ready made" hands-on materials such as kits and modules to support understanding and science inquiry. However, sometimes the materials need adaptations to make sure they suit students' and teachers needs. As part of the Allegheny Schools Science Education and Technology (ASSET) program, the authors…

In summary, this highly conceptual activity helps middle school students understand that the lines on the contour map represent intersections of the surface of the landform with regularly spaced horizontal planes. Building the landform and relating its features to the contour map offer many opportunities for visualization, all grounded in concrete…