Book 19, Question 150
Which River Secrets Can Nobody Explain Yet?
Rivers still hold many secrets that nobody can explain yet! Scientists are still asking big questions about how rivers work, and some answers may take years. The next great discovery could be yours.
More fun facts
- In Minnesota, part of a river drops into a hole below a waterfall and seems to vanish.
- Scientists think it drains somewhere under Lake Superior, but no one knows for sure.
- Scientists still study where underground rivers flow.
- Some rivers run through huge caves.
- Slovenia's Cross Cave is 27,142 feet long, nearly as long as Mount Everest is tall.
Sources: Smithsonian Magazine, National Park Service, National Geographic
Questions kids ask
Where does Minnesota's vanishing river go?
Scientists think it drains somewhere under Lake Superior, but no one knows for sure.