1) Weather is defined as the condition of the atmosphere at a particular time and place, including variables such as temperature, air pressure, humidity, wind, rain, and other conditions.
2) Clouds are formed when tiny water droplets or ice crystals accumulate in the atmosphere, and come in different types depending on their composition and altitude.
3) The document provides examples of different weather types including cloudy, rainy, windy, and sunny days and describes appropriate clothing and activities for each.