Describe examples of water vapor in nature?

Water vapor appears in different forms around us. Some are visible, like clouds and fog, which form when water vapor condenses into tiny droplets. Others are invisible, such as the moisture in the air that makes up humidity and plays a key role in the water cycle. Water becomes vapor through evaporation from oceans, lakes, and rivers, and through transpiration from plants that release moisture into the air.

Visible Indicators of Water Vapor

• Clouds and Fog: Water vapor itself is invisible, but when it condenses into tiny water droplets, we see it as clouds or fog.
• Breath in Cold Weather: The “mist” you see when you breathe out on a cold day is water vapor from your body condensing into droplets.

Invisible Forms of Water Vapor

• Humidity: This is the amount of water vapor in the air. High humidity makes the air feel damp or “heavier,” especially in hot weather.
• Atmospheric Moisture: Even if you can’t see it, water vapor is always in the air from evaporation and transpiration, and it drives the water cycle.

Processes That Create Water Vapor

• Evaporation: Heat from the sun or atmosphere changes water from oceans, rivers, lakes, and even puddles into vapor that rises into the air.
• Transpiration: Plants release water vapor through their leaves, adding moisture to the atmosphere.
• Respiration: Both plants and animals give off water vapor when they breathe, further adding to atmospheric moisture.