Can you teach me how rain is formed?
Can you teach me how rain is formed?
user
Sure, so this is how water molecules in the air become raindrops.
assistant
Explain the process to me.
user
Well, water molecules come together in clusters, called clouds.  The clouds form because water molecules in the air are attracted to each other by intermolecular forces.  When enough water molecules clump together, there are enough of them to overcome the forces that keep them apart, so water droplets form.  Rain drops form when the water droplets grow big enough to overcome the forces holding them together, and they fall to Earth.
assistant
Why does hail sometimes form?
user
That’s because there are some other forces that draw water molecules closer together.  Smaller particles of ice also form by this mechanism, in addition to drops.  This occurs because of electrical attraction.
assistant
At what point does rain turn into snow?
user