Describes circadian timekeeping which matches internal states with environmental changes, and the ultradian clock which coordinates intracellular processes including energy cycles, protein turnover, and cell division. Presents discussions of biological rhythms and its characteristics. (RT)

For the secondary school, the author discourages the use of dichotomous keys in favor of a punch-card system. The system is readily constructed by students for use in plant and animal classification. (CP)

Provides a listing of articles and papers published in 1976 relating to various fields of biology and presents various biological science activities. (SL)

Plant material can be used for classroom investigations of factors influencing infection. Plant responses to infection can be used as teaching models for animal as well as plant diseases. Three activities are discussed. (Author/CW)

Ten ideas are presented for classroom demonstrations in elementary schools. Topics covered include air pressure, siphons, electrostatics, melting point, and physiology of the human body. (PS)

Discusses alternative theories to evolutionism. Five theories are mentioned, but most attention is given to the steady state theory of species which the author considers the most suitable partner for Darwinism in O- and A-level biology courses in the United Kingdom. (HM)

Discusses techniques for teaching science and science concepts (including the role concept), learning contrasts, biology in the press, social responsibility, and development of thinking in students. (SL)

Describes techniques for collecting and recognizing adult mosquitoes. Discusses the six genera of British mosquitoes and provides a key for their identification. (CW)

Discusses between-species variation in adaptation of the photosynthetic mechanism to cope with wide fluctuations of environmental water regime. Describes models for water conservation in plants and the role of photorespiration in the evolution of the different pathways. (CW)

Describes 36 science activities. Topics include: osmosis, fermentation, anhydrobiotic organisms, breathing monitors, trypsin, weeds, amyloplasts, electrolysis, polarimeters, ethene ripening of fruit, colorimetry, diffusion, redox reactions, equilibria, acid-base relationships, electricity, power, resonance, measurement, parallax, amplifiers,…

Contains three articles designed to help practitioners with practical assessment for the GCSE. Articles include: "GCSE Biology Practical Assessment--Can the End Justify the Means?"; "Investigating the Effect of Catalase: GCSE Assessment Practical"; and "An Experimental Design for GCSE Physics." (CW)

Outlines the role of the main organisms involved in woodland decomposition and discusses some of the variables affecting the rate of nutrient cycling. Suggests practical work that may be of value to high school students either as standard practice or long-term projects. (CW)

Addresses several questions related to British secondary students' choices in science, particularly as they relate to gender differences. Cites several national surveys that suggest that girls tend to choose biological science courses, while boys choose physical and technological science courses. (TW)

Assesses whether British secondary schools have altered the scope and pattern of science course offerings. Data on science entry examinations indicate that increases in selection of balanced science courses have occurred. Gains in female entries are noted. (ML)

Provides lists of instructional strategies for elementary school science focusing on: (1) the biological sciences; (2) forces, movement, and energy, and (3) the physical sciences. (JN)