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How Urban Growth Affects Land

Interactive passage with audio narration, comprehension questions, and printable PDF.

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Format: Interactive (Online), Printable (PDF)
Grades: 678
Subjects: scienceela
Standards: MS-ESS3-3
Languages: English, Spanish

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What's included

Reading passage

Reading comprehension

Audio narration

With word word highlighting

Comprehension quiz

Auto-graded

Writing activity

Open-ended response

Glossary & flashcards

Vocabulary practice

Differentiated version

Adapted for varied levels

Spanish translation

Bilingual support

About this reader

This comprehensive 600-word science passage examines how urban growth affects land and natural systems. Students explore the concept of urbanization and learn how replacing permeable natural surfaces with impervious pavement and buildings alters water infiltration patterns, increases surface runoff, and reduces biodiversity. The passage connects urban expansion to critical environmental issues including habitat loss, urban heat islands, and changes in local water cycles. Aligned with NGSS standard MS-ESS3-3, this audio-integrated resource helps middle school students understand human impacts on Earth systems. The passage includes real-world examples, a simplified differentiated version for struggling readers, Spanish translations, comprehensive glossary, multiple-choice questions, writing activities, and graphic organizers to support diverse learners in mastering these essential environmental science concepts.

Written by Workybooks TeamPublished by Workybooks

Sample passage and quiz content

CONTENT PREVIEW

Aerial view of a bustling city with skyscrapers, bridges, and urban infrastructure. — As human populations grow, cities expand outward, replacing forests, grasslands, and wetlands with roads, parking lots, and buildings. Imge by LUNA LUNA / Pexels.

Urbanization is the process of building cities and towns on land that was once natural. As human populations grow, cities expand outward, replacing forests, grasslands, and wetlands with roads, parking lots, and buildings. This transformation changes the land in ways that affect water, wildlife, and local climate patterns.

Natural land surfaces are permeable, which means water can soak through them into the ground below. When rain falls on a forest floor or grassy field, the water slowly filters down through soil layers. This process is called infiltration. Infiltration allows water to refill underground water supplies called aquifers, and it filters out pollutants as water moves through soil particles. Plants and soil organisms depend on this water for survival.

Urban development replaces permeable surfaces with impervious materials like concrete, asphalt, and rooftops. These surfaces do not allow water to soak through. Instead, rainwater flows across these hard surfaces as runoff. During heavy rainstorms, this runoff moves quickly into storm drains and streams, carrying pollutants like oil, fertilizers, and trash directly into waterways. Cities with large areas of impervious surfaces experience more flooding because water cannot infiltrate the ground. For example, a parking lot might produce sixteen times more runoff than a meadow of the same size.

The loss of permeable land also reduces biodiversity, which is the variety of living organisms in an area. When cities expand, they destroy natural habitats where plants and animals live. A forest that once supported hundreds of species might become a neighborhood with only a few types of birds and insects. Wildlife corridors get fragmented, making it difficult for animals to find food, water, and mates. This habitat loss is a major reason why many species struggle to survive near urban areas.

Cities also create heat islands, which are urban areas that become significantly warmer than surrounding rural regions. Dark pavement and building materials absorb sunlight and release heat, while the lack of trees means less shade and cooling from plant transpiration. On a summer day, a city center might be ten degrees Fahrenheit warmer than nearby countryside. Heat islands affect local weather patterns, increase energy costs for air conditioning, and create health risks during heat waves.

Urban growth changes local water cycles in multiple ways. Less infiltration means aquifers receive less recharge, potentially leading to water shortages. Stream flows become more extreme, with higher peaks during storms and lower flows during dry periods. The temperature of runoff from hot pavement can warm streams enough to harm fish and other aquatic life. These changes demonstrate how human activities can significantly alter natural Earth systems.

Interesting Fact: Scientists estimate that a single large tree can intercept over 1,000 gallons of rainwater per year through its leaves and roots, reducing runoff and helping recharge groundwater supplies.

What does the term 'permeable' mean when describing natural land surfaces?

Able to allow water to pass throughUnable to allow water to pass throughAble to absorb heat from sunlightUnable to support plant growth

According to the passage, how much more runoff does a parking lot produce compared to a meadow of the same size?

Four times moreEight times moreSixteen times moreTwenty times more

What is the main reason cities experience more flooding than natural areas?

Cities receive more rainfall than natural areasImpervious surfaces prevent water from soaking into the groundCities are built in areas with poor drainageStorm drains cannot handle normal amounts of rain

Which of the following is an example of how urbanization affects biodiversity?

A forest with hundreds of species becomes a neighborhood with only a few types of birds and insectsCities create new habitats for aquatic animalsUrban areas support more plant species than forestsWildlife populations increase when cities expand

What causes urban heat islands to form?

Increased rainfall in urban areasDark pavement absorbing sunlight and lack of trees for shadeMore people living in concentrated areasPollution blocking sunlight from reaching the ground

How does urbanization affect underground aquifers?

Aquifers receive more water because of increased runoffAquifers are not affected by surface changesAquifers receive less recharge because less water infiltrates the groundAquifers expand in size as cities grow

What happens to pollutants when rainwater becomes runoff in urban areas?

They are filtered out by storm drainsThey evaporate into the atmosphereThey are carried directly into waterwaysThey sink into the ground and are filtered by soil

Why is the temperature of runoff from hot pavement a concern for aquatic life?

It can warm streams enough to harm fish and other aquatic organismsIt causes streams to freeze during winterIt increases the amount of oxygen in the waterIt has no effect on water temperature

True or False: Infiltration allows water to filter out pollutants as it moves through soil particles.

TrueFalse

True or False: A city center is typically cooler than the surrounding countryside on a summer day.

TrueFalse