You can't see, smell or taste air - but here's an easy method for experimenting with it. (Editor)

Teaching how scientific models work can result from "black box" techniques applied to various classroom seating arrangements. The teacher can assign students to seats based on observable (last name, height) and nonvisible (telephone number) criteria. Students become involved in guessing the criterion, which leads to discussion of models and…

The guide presents lesson plans from "NOVA" which targets middle school and junior high school students and meet the National Science Education Standards. Lessons include: (1) "Neanderthals on Trial"; (2) "Fireworks"; (3) "Secrets, Lies and Atomic Spies"; (4) "Bioterror"; (5) "The Missing…

This guide introduces the Craftsman/NSTA Young Inventors Award Program and includes information on competitions, science activities, and tips on how to facilitate invention programs. Sections include the following: (1) "Introducing the Craftsman/NSTA Young Inventors Awards Program"; (2) "Teaching Invention"; (3) "Young…

Describes a science activity which allows secondary level students to discover the law of refraction. (SL)

The National Science Education Standards (NSES) emphasize the use of models in science instruction by making it one of the five unifying concepts of science, applicable to all grade levels. The NSES recommend that models be a focus of instruction--helping students understand the use of evidence in science, make and test predictions, use logic, and…

Four questions related to rain concerning aerodynamic drag force, pressure from the impact of raindrops, impact of wind on the pressure, and stopping force extended on the car by the water are proposed. (YP)

Numerous science and mathematics activities which can be performed with sporks (plastic spoon-forks) that are packaged in cellophane with a napkin and a straw and distributed with school lunches are described. (CP)

Activities involving concave rubber disks are utilized to illustrate the scientific principles of kinetic and potential energy. Provides teacher instructions and questions related to the activity. (MDH)

Offers suggestions for activities that demonstrate the principles of osmosis. Explains how decalcified chicken eggs can be used to give students practice with measurement, experimental procedures, and science principles. (ML)

An approach is suggested for teaching science history through inquiry training. A series of investigations are given for illustrating to students the manner in which organisms are grouped taxonomically. (SA)

An elementary science teacher's technique for stimulating children to think visually, is presented. Through the medium of magic, children are given opportunities to form mental images to explain certain phenomena in science class. (SA)

Presents an experiment to measure the threshold limit of the adhesion of water. Discusses types of thresholds and pseudo thresholds. Provides 13 examples of thresholds in science. (MVL)

Discusses the shock wave sweeping through traffic flow. Describes the characteristics of kinematic waves in different traffic flows. Presents the author's experiences in studying traffic flow. (YP)

Describes how teachers can use wheels of tricycles, bicycles, and trains to stimulate children with mathematics, relative position, and engineering concepts. Techniques are offered for measuring circumference of a bicycle wheel, gear ratios, and pedal wheel circumferences. Comparative data are given for various sized wheels. (Author/SA)