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Melting Glaciers and Ice Sheets

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

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Format: Interactive (Online), Printable (PDF)
Grades: 5678
Subjects: sciencereadingela
Standards: MS-ESS3-5
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 middle school science reading passage examines the critical issue of melting glaciers and ice sheets, aligned with NGSS standard MS-ESS3-5. Students explore how land-based ice in mountain glaciers, Greenland, and Antarctica contributes to rising sea levels when it melts and flows into the ocean. The passage distinguishes between land ice and sea ice, explaining how floating Arctic sea ice affects climate through albedo changes rather than sea level rise. Students learn how the loss of reflective ice surfaces accelerates warming as dark ocean water absorbs more heat. The passage also addresses the threat to freshwater supplies for communities dependent on mountain glaciers. Audio-integrated features support diverse learners, while differentiated versions ensure accessibility for all students. Activities include comprehension questions, writing prompts, and graphic organizers that help students analyze cause-and-effect relationships and compare different types of ice.

Written by Workybooks TeamPublished by Workybooks

Sample passage and quiz content

CONTENT PREVIEW

"Breathtaking view of icebergs in a serene lagoon in Iceland, illustrating climate change." by Koen Swiers / Pexels.

As Earth's climate warms, ice around the world is shrinking at an alarming rate. Scientists observe two main types of ice that respond differently to warming temperatures. Understanding these differences helps explain why melting ice matters so much for our planet's future.

The first type includes glaciers in mountain ranges and massive ice sheets covering Greenland and Antarctica. These ice formations sit on solid land. When they melt, the water flows downhill into rivers and eventually reaches the ocean. Evidence shows this process directly raises sea levels because it adds new water to the ocean. The Greenland ice sheet alone contains enough ice to raise global sea levels by about seven meters if it melted completely. Scientists measure glacier thickness and movement to track how much ice is lost each year.

The second type is sea ice, which floats on the Arctic Ocean's surface. When sea ice melts, it does not raise sea levels because the ice was already floating in the water. However, losing sea ice creates a different problem related to albedo, which measures how much sunlight a surface reflects. Bright white ice reflects most sunlight back to space, keeping the planet cooler. Dark ocean water, by contrast, absorbs most sunlight and converts it to heat. When sea ice disappears, the exposed dark water absorbs more solar energy. This process speeds up warming in a cycle scientists call a positive feedback loop.

Mountain glaciers provide another critical concern beyond sea level rise. Many communities depend on glacial meltwater for their freshwater supply. Rivers fed by mountain glaciers provide drinking water and irrigation for millions of people. As glaciers shrink, these water sources may become unreliable, especially during dry seasons when glacier melt traditionally supplements river flow.

The melting of land ice and sea ice demonstrates how Earth's systems connect in complex ways. Both types of melting contribute to climate change, but through different mechanisms. Understanding these processes helps scientists predict future changes and helps communities prepare for impacts like rising seas and changing water availability.

Interesting Fact: Antarctica's ice sheet is so massive that it contains about 90 percent of Earth's ice and 70 percent of its freshwater, all locked up in frozen form.

Which type of ice directly causes sea levels to rise when it melts?

Sea ice floating on the Arctic OceanGlaciers and ice sheets on landIce cubes in a glass of waterFrozen lakes and ponds

Why does melting sea ice NOT raise sea levels?

Sea ice is too small to matterThe ice was already floating in the waterSea ice melts too slowlySea ice is made of saltwater

What does albedo measure?

How much ice is melting each yearThe temperature of ocean waterHow much sunlight a surface reflectsThe depth of the ocean

In the passage, what does the term 'feedback loop' mean?

A cycle where one change causes another change that reinforces the firstA method scientists use to measure iceThe process of ice melting into waterA type of glacier found in Antarctica

Based on the passage, what happens when white ice is replaced by dark ocean water?

The ocean becomes colderMore sunlight is reflected to spaceMore heat is absorbed, speeding up warmingSea levels immediately drop

How do mountain glaciers affect freshwater supplies for communities?

They provide drinking water and irrigation through glacier-fed riversThey create new lakes for fishingThey prevent flooding in valleysThey have no effect on water supplies

If the Greenland ice sheet melted completely, approximately how much would global sea levels rise?

About one meterAbout seven metersAbout twenty metersSea levels would not change

Which statement best describes why both land ice and sea ice matter for climate change?

They both contribute to warming, but through different mechanismsOnly land ice affects climateThey work in exactly the same wayNeither type significantly impacts climate

True or False: Antarctica contains about 90 percent of Earth's ice.

TrueFalse

True or False: When sea ice melts, it adds new water to the ocean and raises sea levels.

TrueFalse