cereal – n. a plant that produces grain that can be eaten

tuber – n. a short, thick, round stem that is a part of certain plants (such as the potato), that grows underground, and that can produce a new plant

flour – n. powder made from a grain (especially wheat) that is used in cooking for making bread, cakes, etc.

nomadic – adj. a member of a group of people who move from place to place instead of living in one place all the time

archeological - adj. a science that deals with past human life and activities by studying the bones, tools, etc., of ancient people

gritty - adj. containing very small pieces of sand or stone