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Habitat Loss and Climate Change

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

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Format: Interactive (Online), Printable (PDF)
Grades: 5678
Subjects: science
Standards: MS-LS2-4: CONSTRUCT AN ARGUMENT SUPPORTED BY EMPIRICAL EVIDENCE THAT CHANGES TO PHYSICAL OR BIOLOGICAL COMPONENTS OF AN ECOSYSTEM AFFECT POPULATIONS.
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 engaging 500-word science passage explores how climate change drives habitat loss and threatens wildlife populations worldwide. Students in grades 6-8 will learn about habitat requirements, examine real-world examples including polar bears and sea ice loss, and understand the relationship between physical environmental changes and population impacts. The passage aligns with NGSS standard MS-LS2-4, which requires students to construct arguments supported by empirical evidence about how changes to ecosystem components affect populations. Audio-integrated content supports diverse learners. The curriculum includes differentiated reading levels, Spanish translations, comprehension activities, and graphic organizers to help students analyze cause-and-effect relationships in ecosystems. Through evidence-based examples like melting Arctic ice, drying wetlands, and rising seas, students develop critical thinking skills about environmental change and species survival.

Written by Workybooks TeamPublished by Workybooks

Sample passage and quiz content

CONTENT PREVIEW

"A clear-cut area in a coniferous forest, showing piles of logs and branches." by Denys Mikhalevych / Pexels.

A habitat is the specific home a species needs to survive. It provides the right temperature, food, water, and shelter. Climate change is now reshaping and erasing habitats around the world. Scientists observe that rising global temperatures are forcing many species to face an urgent problem: their homes are disappearing.

Climate change affects habitats in several direct ways. Melting sea ice removes the hunting platform that polar bears depend on to catch seals. Drying wetlands are vanishing beneath the species that live there. Rising seas are drowning coastal marshes where fish and birds breed. Warming temperatures push forest and mountain habitats to shift toward cooler areas. Evidence shows these changes happen faster than many species can adapt.

The trouble comes when a habitat disappears faster than its residents can relocate. Some species simply have nowhere cooler left to go. A mountaintop species can run out of mountain as warming pushes it higher and higher. Scientists explain that when temperatures rise, cool-climate species must move upward or toward the poles. However, mountains have peaks and Earth has limits.

In the Arctic, polar bear populations face serious challenges. These bears hunt seals from sea ice platforms. The ice now melts earlier each spring and forms later each fall. This gives bears less time to hunt and build the fat reserves they need. Research from Hudson Bay shows that polar bears now weigh less and have fewer cubs than they did 30 years ago. The population decline links directly to sea ice loss.

Habitat loss represents one of the most direct ways warming threatens biodiversity. When physical components of an ecosystem change, the biological components must respond. Species may migrate, adapt, or face population decline. The speed of current climate change makes adaptation especially difficult. Many species cannot evolve fast enough to keep pace with their changing environments.

Understanding habitat loss matters because ecosystems are interconnected. When one species loses its habitat, it affects other species in the food web. Protecting habitats and slowing climate change can help species survive. Scientists continue to study how species respond to these changes. This research helps us predict future impacts and develop conservation strategies.

Interesting Fact: The American pika, a small mountain mammal, has already disappeared from some mountain ranges in the western United States because warming temperatures eliminated its cool habitat faster than it could move to higher elevations.

What is a habitat?

Only the food that a species eatsThe specific home a species needs with the right temperature, food, water, and shelterAny place where animals can be foundOnly the temperature range where species live

How does melting sea ice affect polar bears?

It gives them more places to swimIt makes their fur grow thickerIt removes the hunting platform they need to catch sealsIt helps them find more food

What does the term 'biodiversity' mean in the passage?

The number of polar bears in an areaThe variety of different species living in an ecosystem or on EarthThe amount of ice in the ArcticThe temperature changes in habitats

Why do mountaintop species face special challenges from climate change?

Mountains are getting tallerThey can run out of mountain as they move higher seeking cooler temperaturesThey prefer warmer temperaturesMountains are disappearing completely

According to research from Hudson Bay, what has happened to polar bears over 30 years?

They have grown larger and strongerThey now weigh less and have fewer cubsTheir population has increasedThey have learned to hunt on land

What happens when physical components of an ecosystem change?

Nothing happens to the speciesAll species immediately adaptBiological components must respond by migrating, adapting, or facing population declineNew species always appear

Which example shows how climate change creates habitat loss?

Building new parks for wildlifeRising seas drowning coastal marshes where fish and birds breedPlanting more trees in forestsCreating wildlife reserves

Why is the speed of current climate change a problem for species?

Species prefer slow changesMany species cannot evolve fast enough to keep pace with changing environmentsFast changes help species adapt betterSpeed does not affect adaptation

True or False: When one species loses its habitat, it only affects that single species and no others.

TrueFalse

True or False: The American pika has disappeared from some mountain ranges because warming eliminated its cool habitat faster than it could relocate.

TrueFalse

Habitat Loss and Climate Change

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