Lists directions for creating some laboratory equipment that makes it easier for students to assess the rate at which an enzyme is modifying its target (substrate). (WRM)

Outlines methodology, demonstrations, and materials including: an inexpensive wave machine; speed of sound in carbon dioxide; diffraction grating method for measuring spectral line wavelength; linear electronic thermometer; analogy for bromine diffusion; direct reading refractice index meter; inexpensive integrated circuit spectrophotometer; and…

Reviews the collection of science teaching apparatus that has been acquired by the British Science Museum since its request for such equipment in 1979. Describes the current acquisitions and discusses their use with regard to the historical development of science education. Mentions certain apparatus still being sought for the collection. (TW)