This NGSS-aligned reading passage introduces students to the role of condensation in the water cycle. Written for middle school readers, it defines condensation as the process where water vapor cools and turns back into liquid. Students will learn how temperature changes cause condensation, which leads to cloud formation and precipitation. Real-life examples such as dew on grass and water on a cold glass help students connect science to everyday life. The passage supports the NGSS standard MS-ESS2-4 and builds science literacy by including important vocabulary and clear explanations. This resource is ideal for reinforcing Earth systems concepts and weather-related phenomena through reading comprehension activities.
Written by Workybooks TeamPublished by Workybooks
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densation is a key part of the water cycle, which is the continuous movement of water through Earth’s systems. It happens when water vapor in the air cools down and changes back into liquid water. This process forms clouds, fog, and even dew on grass in the early morning.
Condensation begins after evaporation, when heat from the Sun turns liquid water into vapor. That vapor rises into the atmosphere. As the water vapor goes higher, the air becomes cooler. When the vapor cools enough, it turns into tiny water droplets. These droplets group together around small particles like dust and form clouds. Without condensation, we wouldn’t have any precipitation—rain, snow, sleet, or hail.
Temperature plays a major role in condensation. Warm air can hold more water vapor, but as the air cools, it can't hold as much. This is why condensation often occurs at night or early in the morning when temperatures are lower. It's also why you might see water droplets on the outside of a cold glass—the water in the air around the glass condenses when it touches the cold surface.
Condensation is important because it helps return water to the Earth's surface. It makes weather events like rain possible and is a part of the natural system that keeps water moving. Meteorologists study condensation to help predict weather, and engineers use it in machines like air conditioners and refrigerators.
Fun Fact: Every cloud you see in the sky is made up of billions of tiny water droplets formed by condensation!
What is condensation?
Water turning into iceWater vapor becoming liquidWater soaking into soilWater running off land
What causes water vapor to condense?
Strong windsHeat from the SunCooling of airMovement of rivers
What forms when tiny droplets group together in the sky?
DewCloudsHailWind
Which process happens before condensation in the water cycle?
FreezingRunoffEvaporationPrecipitation
Why do water droplets form on a cold glass?
Ice is meltingGlass is leakingWater in air condensesGlass is evaporating
What role does temperature play in condensation?
Warmer air causes itCooler air causes itIt freezes waterIt speeds up sunlight
What is the main idea of the passage?
Water vapor is dangerousClouds are made of gasCondensation turns vapor into liquidAir can't hold water
How do air conditioners use condensation?
They heat airThey create cloudsThey cool vapor into liquidThey dry water
Who it's for
Perfect for the way you teach
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Build comprehension skills
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Differentiated reading
Parents
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Homeschoolers
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Independent practice
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Topics
condensationwater cycleevaporation and condensationNGSS science readingMS-ESS2-4weather processes
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