Curated OER
Wheat: Ancient and Ageless
Young scholars label the parts of a wheat plant on a worksheet. In this Egyptian farming instructional activity, students thresh a wheat stem and estimate the amount harvested. Young scholars research Ancient Egypt online.
US Navy
Naval History and Heritage Command: Thomas Hart Benton Naval Art
This site provides information and examples about Thomas Hart Benton's naval art.
Other
Threshing Machines
An outstanding site that shows the development of the threshing machine an its impact on agriculture.
Mocomi & Anibrain Digital Technologies
Mocomi: Separation of Substances
Learn about ten different methods of separation of substances.