The four main forms of carbon--diamond, graphite, buckyballs, and carbon nanotubes (CNTs)--are an excellent vehicle for teaching fundamental principles of chemical bonding, material structure, and properties. Carbon atoms form a variety of structures that are intrinsically connected to the properties they exhibit. Educators can take advantage of…

Science activities or experiments described are: (1) plant cloning, (2) determining the cost-effectiveness of gas and electric heating, and (3) a physics project competition. (MDR)

Describes a procedure to demonstrate the effect of a magnetic force on a moving charge. The materials used are inexpensive and with the use of an overhead projector, easily visible to an entire class. (CP)

Experiments by secondary school students which inflict pain and suffering are described. NSTA policy regarding the use of live animals is presented. An argument for the use of animals in research is given along with a recommendation by the author that animal projects should show a reverence for life. (AJ)

The International System of Units (SI) or the metric system contains related units which make science simpler for students and teachers. By emphasizing descriptive units, requiring unit use throughout calculations, and using negative exponents, teachers can help students have a better understanding of energy, pressure, and mass concepts. (DH)

"Females in Engineering, Methods, Motivation, and Experience" (FEMME) is a precollege program at New Jersey Institute of Technology giving academically talented ninth-grade girls an introduction to engineering. Four experiments (windmill building, burglar alarm construction, electrochemistry, and spatial reasoning activities) helpful in achieving…

Describes the properties of colloids, listing those commonly encountered (such as whipped cream, mayonnaise, and fog). Also presents several experiments using colloids and discusses "Silly Putty," a colloid with viscoelastic properties whose counterintuitive properties result from its mixture of polymers. (DH)

Discusses several environmental problems resulting from thermal pollution. Also discusses experiments which help students develop an awareness and understanding of these problems while reinforcing science process skills, problem-solving methods, and independent logical thinking. (JN)

Describes an experiment involving the preparation of copper iodide that gives stoichiometric results. Materials needed and procedures are discussed along with ideas on different ways to analyze the data. Pertinent chemical equations are presented. (BC)

Explains a projectile motion experiment involving a bow and arrow. Procedures to measure "muzzle" velocity, bow elastic potential energy, range, flight time, wind resistance, and masses are considered. (DH)

Defines learning and memory and presents experimental evidence that indicates that learning and memory are chemical in nature. (JR)