Background information on the biology of aphids is supplied. Using this information in a wide variety of investigations, many involving equipment and techniques available in the school laboratory, can be carried out. An appendix lists possible projects. (Author)

Describes a field exercise which links ecology and taxonomy in the teaching of the species concept. Two common hedgerow plants (red and white campions) are used as a pair of "species" that are normally distinct. Plants of intermediate character can be encountered, and the status of these plants is investigated. (Author/JN)

Describes equipment for recording human breathing (stethographs, tambors, spirometers), construction of pooters (pipettes), field exercise on examining epiphyte distribution on tree bark, and vertebrate skeleton models for teaching locomotion. Includes abstract of student research project examining pH on Colpoda encystment and reviews of…

The shore crab (Carcinus maenas) is an excellent subject for school study, both in the field and the laboratory. It is easily collected and maintained and can be used for a wide range of investigations. Some background details are given and possible areas of investigation suggested. (Author)

A 1977-78 questionnaire/survey about biology field work was carried out among a random sample of secondary school biology needs in England and Wales. Results are compared to those from a 1961-62 survey. Issues addressed include opinions about field work, limiting problems, and amount of field work undertaken by teachers. (Author/JN)

The carabid beetle (Notiophilus) preys readily on an easily-cultured collembolan in simple experimental conditions. Some features of this predator-prey system are outlined to emphasize its use in biology instruction. Experiments with another potential collembolan are described in the context of developing the method for more advanced studies.…

Reviews methods for obtaining accurate and reproducible results in determining zonation patterns on rocky shores. (CS)

Discussed are hazardous substance regulations in Great Britain which effect science teaching at the secondary and college level. Included are background information, immediate implications for schools and colleges, and risk assessments concerning biology classrooms. The responsibilities of Local Education Associations are highlighted. (CW)