This slide shows a table breaking down seven essential periods or "eras." Like chapters in a book, each era tells a part of the story about how people learned about atoms. Starting with ancient thinkers in the "School of Athens" and moving to today, we'll see how our understanding of atoms has changed and grown. As we go through each era, you'll notice that discoveries about atoms come faster and become more exciting. This table will guide us as we explore the fantastic world of atoms through history. Get ready to journey through time and learn how tiny atoms have a big story to tell!