Describes two variations on the traditional methanol cannon demonstration. The first variation is a chain reaction using real metal chains. The second example involves using easily available components to produce sequential explosions that can be musical in nature. (AIM)

Introduces self-assembling, three-dimensional models (SAMs) that present the structure and behavior of water which facilitates a better understanding of the structural geometry of water. (Contains 12 references.) (YDS)

Presents a demonstration of sublimation, in which a solid is directly converted into the gaseous state, using an overhead projector. (MKR)

Describes the working of Final Call, a commercially available breath analyzing device, which uses the chemical reaction involving the reduction of chromium (VI) in the orange dichromate ion to the green chromium (III) ion to detect ethyl alcohol. Presents a demonstration that simulates the use of a Final Call device. (JRH)

Describes a demonstration that is used to aid in helping students to better understand the principle of oxidation and reduction. (ZWH)

Describes the construction of a Tesla coil using a car coil and presents various experiments for which it can be used. (JRH)

Describes how to do electrical conductivity demonstrations that result in glowing pickles, onions, potatoes, cabbage, and grapefruit and how to devise a safe device to hold them. (MKR)

Discusses the structure and polarity of the water molecule. Presents activities and demonstrations to illustrate these concepts. (Author/JRH)

Presents a simple experiment involving the sense of smell that students can accomplish during a lecture. Illustrates the important concepts of equilibrium along with the acid/base properties of various ions. (JRH)

In these years of shortened budgets, teachers are becoming more and more inventive in designing science teaching tools and experiments. This manual contains instructions for building a few such tools, either invented or improved on by teachers affiliated with the Institute for Chemical Education (ICE). The tools are created from low cost and…

Describes a demonstration in which a bloodred-colored solution of hydrogen peroxide, sodium hydroxide, and phenolphthalein indicator is added to a mud-colored solution of potassium permanganate, hydrated manganous chloride, and sulfuric acid. The mixture turns clear when added together. Draws parallels between the demonstration and the Old…

Thermochromism is the reversible change of color of a solid when heated or cooled. Describes the preparation of thermochromic compounds that exhibit sharp thermochromic transitions. (DKM)

Describes a laboratory exercise containing a practical series of experiments that novice students can perform within two hours. The exercise provides a confirmation of van't Hoff's law while placing more emphasis on osmotic flow than pressure. Students can determine parameters such as the reflection coefficient which stress the interaction of both…

Soap bubbles excited using a vibration generator can be used to model the formation of a diatomic molecule because of their analogous properties to atomic orbitals. (Author)

Describes a method that uses ping-pong balls to construct 3-D models of covalent molecules to represent Group I-VIII atoms. (ZWH)