This teaching resource was developed by a K-12 science teacher in the American Physiological Society’s 2008 Frontiers in Physiology Program. For more information on this program, please visit www.frontiersinphys.org. Students will design and carry out an experiment where they will observe and evaluate how algae population changes when subjected to environmental influences by using a variety of detecting methods like, using a Spectrophotometer or Spec-20 for analyzing algae population density through measuring transmitted and absorbed light passing through growth tubes. An alternative analysis could be done with the assistance of a color wheel or CBL-Colorimeter Probe. This laboratory will fit into any ecology class or a unit on population changes or in any biology class unit dealing with understanding population dynamics and photosynthesis. It could be used for advanced biology classes fitting into population changes, photosynthetic studies, and food chains. Some understanding of light infiltration or absorption of light through photosynthetic organisms will assist in this laboratory. Upon completion of this activity, students will be able to enable student to collect data on living organisms using algae as templates.


  • Education > General

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    Environmental factors,Education,NSDL,NSDL_SetSpec_BEN,oai:nsdl.org:2200/20110722031219978T,Ecology, Forestry and Agriculture,Geoscience,General,Social Sciences,Space Science,Spectroscopy,Teacher-centered/traditional instruction,Tutorial or self-directed instruction,Physics,Laboratory experiment,Student-centered instruction



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