Book excerpt: How does a field of corn become a delicious bowl of popcorn? The story behind the fluffy snack the entire country loves is revealed in this photographic nonfiction picture book. Kids love food--and they especially love to eat popcorn! Author Cris Peterson offers an illuminating step-by-step examination of the history and science behind America's favorite snack. With photographs illustrating every stage, readers get a behind-the-scenes view of how popcorn is planted, grown, harvested, processed, tested, and finally shipped to stores and movie theaters all over the world. Back matter delves into the history of popcorn and how it became so popular in the United States.