The rain A few days agos, I writed a notebook where I explained how thunder is created. Following this notebook, I decided to describe how rain is created. A cloud is made of many macro drops of water, so small that we can't see them. At high altitude, the air is fresh but because these drops are small and light, hot air flows raise them from the ground to the clouds. When it rains, all these small drops are gathering together to form a heavier drop of water. Whent it becomes too heavy for beeing lifted up by the air, it falls. This is how the rain is created.