... measure and predict weather? Measuring Weather Temperature, air pressure, and water affect weather Ocean currents move warm water to cold lands They also move cold water to warm lands Areas near water ... Fresh Water Indian Ocean 100 Frozen Fresh Water Southern Ocean 97 100 Salt Water How water and air affect weather? How Water Is Recycled Water moves from the surface of Earth into the atmosphere and ... rivers, melting ice, and heavy rain Most water on Earth is salty ocean water Some fresh water is in lakes, rivers, and streams Much of Earth’s fresh water is frozen in glaciers and polar ice caps...