This article describes the basic physics of several types of holograms and discusses different recording materials in use. Current and possible future applications of holograms are described as well as their large-scale production. (Author)

Using the movie Star Wars as inspiration, an activity is presented to introduce students to water's cohesiveness and how the surface tension of water can be disrupted. (MKR)

This rationale for teaching elementary-level science using a hands-on approach emphasizes the importance of students learning the process by which an outcome arises rather than just remembering the outcome. The article encourages use of everyday objects rather than fancy scientific apparatus and offers suggestions for helping students undertake…

Uses an air track and microwave transmitters and receivers to make a Michelson interferometer. Includes three experiments: (1) measuring the wavelength of microwaves, (2) measuring the wavelength of microwaves by using the Doppler Effect, and (3) measuring the Doppler shift. (MVL)

Describes a safer, less expensive, preparation-efficient lab (microchemistry and mole) to aid teachers in teaching chemistry. Equipped with small-scale, hands-on activities, teachers can provide students an activity that allow them to collect, analyze, and discuss data all within a single class period. (ZWH)

Asserts that concerns over the use of animals in science education is confounded by the unworthy introduction of false sentiment by animal rights groups, which persist in ignoring the realities of biology. (PR)

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 a fun-filled activity in which students create the perfect Kool-Aid recipe. Incorporates chemistry, cooperative group skills, experimentation, and recording of results. (JRH)

Presents an example of a take-home discovery-based activity that supplements the lecture component of a general chemistry course. Involves the student in chemistry exploration outside the class. Extends the context of content and experimentation into a nontraditional laboratory environment. Reports that students find the challenges useful in…

Explains the infection process of T-4 phage and provides the steps of experimentation on bacteriophages. Uses Escherichia coli and a virus mixture to observe phage infection. Points out the importance of safety and lists cultures, media, and disposable lab equipment for a group of students. (YDS)

Introduces a number of applications of a polymer which is capable of holding 800 times or more its weight in distilled water. Explores other chemical water absorbers. (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)

In this brief article, the author, a science teacher at F. C. Hammond Middle School in Alexandria, Virginia, describes how the setting up of a simple science experiment on the first day of school can get students excited about learning science. The experiment involves heating a small amount of water in a flask, then covering the opening of the…

DNA microarray technology is revolutionizing biological science. DNA microarrays (also called DNA chips) allow simultaneous screening of many genes for changes in expression between different cells. Now researchers can obtain information about genes in days or weeks that used to take months or years. The paper activity described in this article…

Most students consume fizzy drinks and will have seen the bubbles that appear when the drinks are poured. But how much gas is in the bottle or can? Simple investigations can answer this and other questions both theoretically and experimentally.