Earth's Landforms:Caves(PB)

All caves are underground, but there is more to these landforms than meets the eye! Water forms some caves, while volcanic lava forms others. Some have waterfalls, while others have huge stalactites and stalagmites. Give beginning readers all the need-to-know information about canyons, including their characteristics, how they form, and where they can be found around the world. Part of the Earth's Landforms series.