You might find a topic by thinking of classes you have taken.
Think back to concepts covered in those classes and consider whether
they would serve as unique, interesting, and enlightening topics for the
informative speech. In astronomy, you learned about red giants. In
history, you learned about Napoleon. In political science, you learned
about The Federalist Papers. Past classes serve as rich resources for
informative speech topics. If you make this choice, use your class
notes and textbook as a starting point. To fully develop the content,
you will need to do extensive research and perhaps even a few
interviews.