We've learned about many types of clouds already, like the Altocumulus Clouds!
Another type of cloud is called the stratocumulus cloud.
Stratocumulus clouds are large dark and round, usually in groups or waves, and they are lower in the sky.
In the cold polar oceans there are many very large stratocumulus clouds.
They look very similar to altocumulus, but much larger sized groups.
(from: wikipedia - stratocumulus cloud)
Kid Facts - Blast from the past: Basalt