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Unit13 The Water Planet 1. What is the chemical structure of water? Carbon & Oxygen. Nitrogen & Oxygen. Hydrogen & Oxygen. 2. What is the freezing point of water? A. 0℃ B. 100℃ C. 0℉ 3. What state is water in at room temperature? A. Liquid B. Solid C. Gas ? ? ? 4. An ice cube can float on water. It has something to do with water’s . salinity B. density C. heat capacity 5. The coastal areas are often neither too hot nor too cold. It’s because of water’s . A. salinity B. density C. high heat capacity ? ? Find the definition of an estuary An estuary is the body of water ______ a river meets the ocean. Salt water from the ocean and fresh water from the river mix _______ in an estuary. This ______ of fresh and salt water creates a unique environment _____ with life of all kinds-a zone between the land and sea. where together mixing
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