Water vapor is the gaseous form of water that is present in the air. It is created when water evaporates from sources like lakes, rivers, and oceans, or when it is released through activities like boiling water. Water vapor is ...
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Water evaporates faster on windy days because the wind helps move the water vapor away from the surface. When the air is moving, it reduces the amount of water vapor that collects above the water, allowing more liquid water to ...
On a hot day, water in a puddle evaporates. The heat from the sun causes the water molecules to gain energy and move faster. As a result, some of the water molecules change from liquid to gas and escape into ...
Freezing is the process in which a liquid turns into a solid when it loses heat. During freezing, the particles in the liquid slow down and move closer together, forming a solid structure. For example, water freezes at 0°C (32°F) ...
Water forms droplets on the outside of a cold glass because of condensation. When a cold glass is exposed to warm air, the moisture in the air cools down when it touches the glass. As the air cools, the water ...