A DataSheet concisely describes a particular scientific data set in a way that is useful to educators interested in teaching with the data set. DataSheets highlight the connections between data sets and specific topics in science; they explicate how to acquire the data and include (when available) links to classroom activities that use the data. More information about DataSheets.
NERC Foliar Chemistry Database part of Datasheets
This interactive site provides access to a large database of foliar chemistry for the northeastern US. The elements and compounds in the databse are Ca, Al, Mg, Mn, P, K, Sr, nitrogen, lignin, cellulose, hydrogen, ...