How is stalactite and stalagmite similar?

Stalactites and stalagmites are similar because they are both cave formations that are made out of limestone from the process of water dripping.

They are different because a stalactite forms from the ceiling of a cave, and a stalagmite forms from the ground up. One way to remember this is the "C" in stalactite stands for ceiling- it holds tight to the ceiling, and the "G" in stalagmite stands for the ground where it forms.

After many years, stalactites and stalagmites can end up touching each other and they form another cave formation called a column.