The water drop cycles from the ocean to the land to the ocean again. The three basic cloud types are cumulus, cirrus, and stratus. Most clouds and precipitation are formed in areas of rising air in the atmosphere. Fog is a cloud that forms on the ground. A thunderstorm develops from a cumulus cloud.
Thunder is created when a lightning bolt splits the air.
The temperature causes the air to expand at a rapid rate causing the sound we hear. The three conditions needed are warm earth, moist air, and a trigger. As the drop of water travels upward, it collides with other super-cooled drops, all the while growing bigger. Both lightning and static electricity involve electrons that travel from a negative to a positive area, liberating energy. Slow moving thunderstorms drop an unusual amount of rain on a small area that cannot be absorbed into the ground.