Describes the development of a modified spherometer in which the position of the central leg is measured electrically. (MKR)

Discusses the advantages of a partnership between industrial arts and science education and describes some simple, useful projects that could result from the partnership. (JOW)

Includes materials list and assembly instructions for a heated, shaking waterbath. (MKR)

Describes the construction of an effective plant incubator for classroom use using a five-gallon plastic bucket. (JRH)

Discusses safety issues in science, including: allergic reactions to peanuts used in experiments; explosions in lead/acid batteries; and inspection of pressure vessels, such as pressure cookers or model steam engines. (MKR)

A construction of a simple gas apparatus that can be made by students either in the laboratory or the classroom, is presented. The components needed to construct the apparatus are disposable polythene pipets and polypropene microcentrifuge tubes.

Calibration is a technique that is commonly used in science and engineering research that requires calibrating measurement tools for obtaining more accurate measurements. It is an important technique in various industries. In many situations, calibration is an application of linear regression, and is a good topic to be included when explaining and…

An alternative method that uses a simple apparatus to measure vapor pressure versus temperature in a closed system, in which the total pressure is the vapor pressure of the liquid sample, is described. The use of this apparatus gives students a more direct picture of vapor pressure than the isoteniscope method and results have generally been quite…

Described is a device that can be set up on a bench with inexpensive apparatus. The device performs in non-coherent white light according to the laws of geometrical optics. (RH)

Describes the Surplus Buying Agency, a British organization from which schools can obtain physics materials and equipment obtained from governmental and industrial sources. (MLH)