The scientific theory, the butterfly effect, is a concept in which something insignificant turns into something vast. This concept was invented by the the American meteorologist Edward Norton Lorenz. Initially, the butterfly effect was used in theories for weather predictions. The term later became became popularly used by the nation of science. The metaphor of the butterfly is used because a butterfly’s wings, which are fragile, do not cause a considerable amount of air when they flap their wings. However, that little movement may initiate a series of changes that grows so much that they eventually cause a large storm a tremendously amount of miles away. In the novel, “ A Sound of Thunder”, the butterfly effect occurs. The characters travel