You might be wondering what's really in those deep, dark holes we call "caves." How did they get there? Why do people go into them? What should you take with you? Are caves important to us? These and many other questions may come to you as you think about the mysteries of the underground. Can you breath underground? How do you see? What kind of animals live there?
Or maybe you have questions about exploring places where no one has ever been, or the important scientific work in caves. What kind of people conduct work in those places that never see the sun? What have we learned so far in the study of caves and cave resources? Are there caves out there that no one's been to? If you discover a new cave, can you name it after yourself?
So just close your eyes and imagine the cool, quiet darkness surrounding you in a world of perpetual night. Then let your curiosity be your guide, and fire away!