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A mold or mould is a fungus that grows in the form of multicellular filaments called hyphae. In contrast, fungi that can adopt a single-celled growth habit are called yeasts. Everyone wants to keep their bread from molding so the problem was, what type of food will grow mold the fastest. Mold grows on different foods at different rates. There are also different kinds of molds that certain pieces or types of food are prone to. Research mold and how it grows on foods that are moist versus foods that have been kept in a dry, cool place. This experiment will help you learn more about mold by watching it grow. Wet samples will grow the most mold, while cooked samples will grow the least mold. Samples left in the sun will grow the most mold, while refrigerated samples will grow the least mold.Molds need water and nutrients to grow, so wet, uncooked samples will provide the most nourishment to many types of molds. Cooking food often denatures (destroys) many proteins and nutrients in food and makes it harder for mold to use the nutrients for growth. Mold also thrives in warm environments, so thesamples left in the sun will mold first. Refrigeration prevents cell activity in many living things like fungi and bacteria, which is why foods typically last longer in the refrigerator. = =