Answer:
Sprouting is the natural process by which seeds or spores germinate and put out shoots, and already established plants produce new leaves or buds or other newly developing parts experience further growth.
Put the seed and chaff on a cookie sheet and place the cookie sheet on the box. Turn a fan on so the air blows across it and lift the end of the cookie sheet so the seeds roll down. If need be, repeat until the chaff has blown off. Sieves can also work to winnow the chaff from the seed.
