Students in kindergarten develop the understandings of basic needs, weather patterns and severe weather. Through identification of patterns, determination of cause and effect, investigation of structure and function, as well as systems and system models students begin to make sense of the natural world. Developmentally appropriate use of science and engineering practices prepares students for more complex phenomenon. December through February comprise the winter season in the Northern hemisphere. Changes in temperatures, forms of precipitation, types of storms, and preparedness plans occur during winter. Average daily temperatures in the Chicago area range from a high of 36°F to 18°F as a low, while precipitation (rain or the equivalent of ...