The story "A Sound of Thunder" by Ray Bradbury can be considered as science fiction throughout its entirety. However, if you are looking for a specific page that further highlights the science-fiction elements, you can refer to page 2 of the story. On this page, the characters are introduced, and it is explained that they are embarking on a time travel expedition to the prehistoric era. This introduction to time travel and the concept of altering the past establishes the main sci-fi premise of the story.
