The difference between a stalactites and a stalagmites is that the C in stalactites means ceiling, so they are often found on the ceiling. The G in stalagmites means ground, which is why they are found on the ground.
The difference between stalagmites and stalactites is that stalactites form on the roof, or the top of a cave, and point downwards and stalagmites form on the ground, or the bottom of a cave and point upwards.
