Your Topic Question should be broad enough to cover a lot of ground, like casting a wide net over an ocean. But at the same time, it should be focused enough to give you a clear direction, like aiming a spotlight on a stage.
Your Topic Question should be open-ended, meaning it doesn't have a simple yes or no answer. Instead, it invites you to dive deeper and discover new things.
Example: Instead of asking, "What is space?" (which is too broad), you might ask, "What are the important features of our solar system?" This question still covers a lot about space, but it's focused on a specific aspect—our solar system.
Example: Instead of asking, "What's the tallest mountain?", you might ask, "How do mountains form, and why are some taller than others?" This question opens up a whole lot more!