Caverns and caves. What secrets do they hold? What are the most famous caverns and caves? Why? Where are they located? What is the difference between a cavern and a cave? How do they form? How long do they take to form? Are they still forming/changing? What is the difference between a stalactite and a stalagmite? How do they form? How long do they take to form? What is a spelunker?
Lots of research…lots of directions this could go as an authentic project. You may end up with student created stalactites and stalagmites, a student created cavern… or a student written novel about a lost treasure found in a cave…
The Educational Journey 