This would be a great time to bring in wheat and grind it in class. Small hand-powered mills can be bought at Clark's Nutrition, Loma Linda Market or other health food stores. Use the wheat flour for the next project. Make sourdough bread. This can be done at home or in class.
Most stores now sell commercial sourdough starter with instructions.
E-mail me if you can't find what you need to get started. This is an enjoyable experience, with real connections with history. The worksheets may be used as either a lesson guide and written in as you go along, or as a test. Feel free to make up your own to fit your approach to the curriculum Adventures 1. Definitely schedule a trip to the San Bernardino County Museum.