How does water create or carve a cave? Objective The students will be able to: Work productively in small groups to make a cave Conceptualize how water carves or creates Mammoth Cave Background The two basic kinds of rocks found in the Mammoth Cave area are limestone and sandstone. Limestone is the “soft” rock (more water soluble) that is dissolved more easily by water. Sandstone and shale are the rocks that are on top of the cave. They are “harder” (less water soluble) and don’t let the water soak into the cave. The limestone was laid down in this part of Kentucky around 270-350 million years Duration: 30 Minutes Essential Question How does water create or carve a cave? Objective The students will be able to: Work productively in small groups to make a cave Conceptualize how water carves or creates Mammoth Cave Background The two basic kinds of rocks found in the Mammoth Cave area are limestone an.