How does rain form?

To start, a cloud must be formed in the atmosphere by warmer air at the surface rising in to cooler air aloft.

The water vapor in the air is condensed onto tiny pieces of dust and collected together to create the cloud.

Inside the cloud, swirling winds blow water droplets around. When the water droplets bump into each other, they join together.

Eventually, the droplets become heavy enough and start to fall.

As they fall to the surface, the droplets gather more moisture to form even larger raindrops.

Small raindrops are almost spherical or round in shape. Larger drops are flattened at the bottom, resembling a hamburger roll.

» More Homework Help Questions

Due to our site relaunch on October 25, previous comments on existing stories are no longer available.  This change is due to the limitations of Facebook's software 

The views expressed are not those of this company or its affiliated companies. Please note by clicking on "Post" you acknowledge that you have read the TERMS OF USE  and the comment you are posting is in compliance with such terms. Your comments may be used on air. Be polite. Inappropriate posts or posts containing offsite links may be removed by the moderator.


There is 1 closing active.   >> LIST


There is 1 area under advisories, watches or warnings.   DETAILS >>>

Allentown, PA 18102


Broken Clouds



  • %

This Week's Circulars

Top Stories

Latest from the newsroom

More from the Newsroom