Literaturnachweis - Detailanzeige
Autor/in | Hershey, David R. |
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Titel | Evaluating Metal Probe Meters for Soil Testing. |
Quelle | In: American Biology Teacher, 54 (1992) 7, S.436-38Infoseite zur Zeitschrift |
Sprache | englisch |
Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
ISSN | 0002-7685 |
Schlagwörter | Leitfaden; Unterricht; Lehrer; Biology; Earth Science; Gardening; Higher Education; Measurement Equipment; pH; Science Activities; Science Education; Science Equipment; Science Laboratories; Secondary Education; Soil Science |
Abstract | Inexpensive metal probe meters that are sold by garden stores can be evaluated by students for their accuracy in measuring soil pH, moisture, fertility, and salinity. The author concludes that the meters are inaccurate and cannot be calibrated in standard units. However, the student evaluations are useful in learning the methods of soil analysis and instrument calibration. (PR) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |