A list of nonprint science materials for elementary school libraries, divided into broad subject categories. A list of producers and their addresses is included. (LS)

Presents questions and possible answers involving fundamental chemical ideas related to systems within organisms and the environment. (SLH)

This periodical presents a transcript of a speech by Dr. James C. Fletcher, Administrator of the National Aeronautics and Space Administration (NASA), commemorating the Apollo-Soyuz Test Project and outlining the significance of this joint project; preliminary results of the Viking Mission to Mars, including details of the view of Mars from orbit,…

Describes the major obstacles in the study of ultraviolet radiation (UV). Presents the beneficial aspects of UV such as vitamin O production, sterilization, clinical treatment of diseases and wounds, and the marking of patients for radiotherapy. Warns of the dangers of UV exposure such as skin cancer and early aging. (GS)

Describes the process of high gradient magnetic separation which gives promise as a method of large scale removal of colloidal impurities including bacteria and viruses. Examples and diagrams are included. (GH)

Briefly mentions pre-19th century ideas and discusses the contributions of Mohr, Seguin, Mayer, Grove, Colding, Joule and Helmholtz and the controversies regarding priority including Tyndall's involvement in one of them. Mentions the tension between philosophical and practical modes of thought in 19th century science. Includes portraits. (GH)

This is the third in the fourth series of general bibliographies developed to disseminate information on documents analyzed at the ERIC Information Analysis Center for Science and Mathematics Education. Reported are 355 citations of selected documents related to instructional equipment and materials for science and/or mathematics education. The…

This periodical presents a summary of the Viking Mission to Mars, a listing of Skylab science films with the address for additional information; a schedule of exhibits at National Aeronautics and Space Administration visitor centers; space shuttle news; announcements of International Science Fair Awards; and an annotated bibliography of meteorites…

Surveys the growth, origins, and languages of the chemical literature. Discusses the indexing and abstracting of the chemical literature by the Chemical Abstracts Service. (MLH)