Food/Biotechnology Link Station #1: Time Period = B.C. Can you imagine life without bread as we know it? Before 2000 B.C., the bread that people ate was flat and hard. Then Egyptians discovered yeast, a living organism that makes bread rise. These ancient people used yeast to modify bread, yet never fully understood how the process worked. In fact, no one would understand exactly how yeast makes bread rise until nearly 38 centuries later

Student Challenge Questions Station #1: Time Period = B.C. 1. Would you consider the ancient Egyptians to be biotechnologists? Why? Why not? 2. How do you think yeast causes bread to rise? 3. a. What do you think the Latin root "bio" means? b. Define the word "technology".

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