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Asai, Elizabeth; Cao, Sharon – NCSSSMST Journal, 2009
The purpose of this investigation was to determine if three Western species of the Panax, Lycium, and Astragalus genera had antibacterial and/or antioxidant properties, and how their properties compared to Eastern herbs in the same genera. The group hypothesized that when compared, the corresponding herbs would have identical antibacterial and…
Descriptors: Plants (Botany), Microbiology, Radiation, Science Experiments
Brown, Courtney – NCSSSMST Journal, 2006
Sediment oxygen demand (SOD) is the rate that dissolved oxygen leaves the water column in a body of water due to the build-up and decomposition of organic carbons in the sediment. The introduction of organic materials changes the chemistry of streams, and many chemical reactions occurring in bodies of water, with the exception of photosynthesis,…
Descriptors: Earth Science, Ecology, Organic Chemistry, Water Pollution