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Direct linkElias, Ryan J.; Hopfer, Helene; Hofstaedter, Amanda N.; Hayes, John E. – Journal of Food Science Education, 2017
The human nose is a very sensitive detector and is able to detect potent aroma compounds down to low ng/L levels. These levels are often below detection limits of analytical instrumentation. The following laboratory exercise is designed to compare instrumental and human methods for the detection of volatile odor active compounds. Reference…
Descriptors: Olfactory Perception, Human Body, Science Laboratories, Laboratory Procedures
Download full textBolles, William H.; And Others – 1973
Designed for use in Pennsylvania secondary school science classes, this guide is intended to provide fundamental information in each of the various disciplines of the earth sciences. Some of the material contained in the guide is intended as background material for teachers. Five units are presented: The Earth, The Oceans, The Space Environment,…
Descriptors: Aerospace Education, Astronomy, Curriculum Guides, Earth Science
