青少年特別獎
#物理與化學
科學圖說 Introduction
冬季連續幾天低於零下15℃的氣溫，造成海平面溫度降至冰點以下，加上周圍碼頭限制海水的流動，讓海水慢慢形成冰的結晶體。由於長時間低溫，結晶變成大的冰塊，在溫度和潮汐的變化下，冰塊不斷地龜裂，在海水的沖刷下形成小的冰片，飄浮在海平面，這就是照片裡海冰形成原因。
In winter, when the temperature drops to below minus 15°C for several days, the sea-level temperature also falls below freezing point. The surrounding docks restrict the flow of seawater, allowing ice crystals to form slowly. As a result of the prolonged low temperature, the crystals become large blocks of ice. Changes in temperature and tides crack the ice blocks and sea water washes them into small pieces of floating ice. This is the reason for the formation of sea ice in the photo.
