Teachers are provided with several experiments for primary students that address concepts related to the properties of air, sound, and water. (IAH)

Presents activities designed to build an understanding of why the physical characteristics of small animals such as the water strider, water spider, and the basilisk make it possible for the animals to use the surface tension of water to their advantage. Discusses the concept of geometrical scaling. (JRH)

Presents a practical introduction to the phenomenon of static electricity. (Author/MKR)

Presents activities that use a simple homemade apparatus called "the cannon" to demonstrate Newton's Third Law. Reviews the chemistry concepts behind the ignition of the cannon and presents the Momentum Lab and the Projectile Motion Lab. (JRH)

Presents an activity designed for introductory physics courses that enhances students' understanding of the concept of waves, especially the superposition of waves. Uses two different approaches that end with the same result and enable students to see the connection between spatial and temporal properties of waves and their superposition. (JRH)

Presents an assignment that involves forming student companies to determine and defend cost estimates for producing a silver Oscar statuette. Includes an assessment rubric for cooperative effort. (JRH)

Presents an activity to investigate soil nitrification and denitrification. Enables students to visualize the transformation of ammonium to nitrate and its reduction to nitrogen gases. (JRH)

Presents a unit on volcanoes for third- and fourth-grade students. Includes demonstrations; video presentations; building a volcano model; and inviting a scientist, preferably a vulcanologist, to share his or her expertise with students. (JRH)

Describes the procedures for starting and maintaining a bee hive to enhance any lesson on the study of bees. (ZWH)

Presents an activity in which students: identify agricultural crops that are grown in Great Lakes states, understand how global climate change will affect these crops, hypothesize about crops that could replace these, compare the current crops' economic value with projected replacement crops, and analyze the impact of global climate on the…

Presents an activity exploring the basics of atomic structure using the theme of the Addams Family. (MKR)

Presents experiments that use a video cassette recorder (VCR) to demonstrate polarization of radio waves using two dipole antennas and a spark gap transmitter tuned to a frequency of either 60-66 MHz or 66-72 MHz with wavelengths of 5 or 4.3 meters, close to the wavelengths of the original work done by Heinrich Hertz. (JRH)

Presents an activity to simulate electrophoresis using everyday items. Uses adding machine paper to construct a set of DNA fingerprints that can be used to solve crime cases designed by students in any biology class. (JRH)

This activity involves elementary students in an investigation of the usefulness of plant parts as a food source. An introduction discusses the dependence of animal life on plants. Materials needed and step-by-step procedure are provided. (LZ)