This article explains a simple way to demonstrate natural convection, such as from a lit candle, in the classroom using an overhead projector. The demonstration is based on the principle of schlieren imaging, commonly used to visualize variations in density for gas flows.

The use of a logarithmic amplifier preceding an oscilloscope's vertical amplifier is described for physics teachers who want to demonstrate the exponential decay nature of some phenomena. (Author/SA)

Intended for the elementary teacher who lacks science teaching experience, this article presents tips for finding background information and for stocking a portable "science lab" with everyday materials. It also outlines 10 easy experiments. (SJL)

This document describes the theory and mode of operation to be used with a cathode ray oscilloscope. Safety percautions to be taken, methods of calibration, and uses of the equipment in school operation are given. A brief "trouble-shooting" section and a bibliography of other reference is included. (GR)

Summarizes some of the astronomy materials developed at the Lower North South Australian Science Teachers Association (SASTA) meeting of October, 1978. (HM)

Provides a discussion which is intended for chemistry college students on the ion cyclotron resonance (ICR) spectroscopy, the physical basis for ion cyclotron resonance, and the experimental methodology employed by ICR spectroscopists. (HM)