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Amazon Rainforest and Climate Change

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Format: Interactive (Online), Printable (PDF)
Grades: 5678
Subjects: scienceela
Languages: English, Spanish

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Reading passage

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Audio narration

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Comprehension quiz

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Glossary & flashcards

Vocabulary practice

Differentiated version

Adapted for varied levels

Spanish translation

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About this reader

This 400-500 word informational science passage for grades 6-8 explores the Amazon Rainforest and Climate Change, aligned with NGSS Earth Science standards. Students discover how the Amazon creates its own weather through evapotranspiration, releasing moisture that sustains the entire forest ecosystem. The passage examines how climate change, rising temperatures, and human deforestation threaten this self-watering system. Scientists warn the Amazon could reach a tipping point where it transforms from rainforest to grassland, releasing enormous carbon stores and accelerating global warming. The content connects to broader concepts of carbon sinks, ecosystem stability, and Earth system interactions. Audio-integrated features support diverse learners, while differentiated versions ensure accessibility for English Language Learners and struggling readers. Activities include comprehension questions, writing prompts, and graphic organizers that help students analyze cause-and-effect relationships and understand the critical role of the Amazon in regulating Earth's climate.

Written by Workybooks TeamPublished by Workybooks

Sample passage and quiz content

CONTENT PREVIEW

Stunning aerial view of a boat navigating a river surrounded by lush jungle in Putumayo, Colombia. — "Aerial view of a boat navigating a river surrounded by lush jungle in Putumayo, Colombia." by Andrés Ramírez / Pexels.

The Amazon is the world's largest rainforest. It covers an area about two-thirds the size of the United States. This massive forest holds roughly one in ten known species on Earth. The Amazon also stores enormous amounts of carbon in its trees. Scientists estimate the forest contains about 150 billion tons of carbon locked away in plant matter.

The Amazon has a remarkable ability to create its own weather. Trees pull water from the soil through their roots. They release this moisture into the air through tiny pores in their leaves. This process is called evapotranspiration. The water vapor rises and forms clouds. These clouds produce rain that falls back onto the forest. Winds carry the moisture-rich air across the forest. The same water can fall as rain multiple times as it moves from east to west. This self-watering system keeps the entire rainforest wet and healthy.

Climate change threatens this delicate cycle. Rising temperatures cause more water to evaporate from soil and plants. Deeper and longer droughts dry out the forest. Human deforestation removes trees that would normally release moisture. Evidence shows parts of the Amazon are already getting drier. Scientists observe that some areas now release more carbon than they absorb. This shift turns sections of the forest from a carbon sink into a carbon source.

Scientists warn the Amazon may reach a tipping point. This is a critical threshold where the forest can no longer sustain itself. If enough trees die or get cut down, the remaining forest may not produce enough rain. Without adequate rainfall, the rainforest could transform into grassland or dry woodland. Computer models suggest this shift could happen if 20 to 25 percent of the forest disappears. Some regions are already approaching this dangerous level.

The consequences of losing the Amazon would be severe. The forest currently absorbs about two billion tons of carbon dioxide each year. If the Amazon shifts to grassland, it would release 90 billion tons of carbon. This massive release would significantly accelerate global warming. The loss would also destroy habitat for millions of species. Regional weather patterns across South America would change dramatically. The Amazon's collapse would affect climate systems worldwide.

Understanding the Amazon's role in Earth's climate is essential. The rainforest functions as a vital part of the global carbon cycle. It regulates temperature and rainfall patterns far beyond its borders. Protecting the Amazon requires reducing greenhouse gas emissions globally. It also demands stopping deforestation in the region. Scientists emphasize that we may have limited time to prevent the Amazon from reaching its tipping point.

Interesting Fact: A single large tree in the Amazon can release up to 1,000 liters of water into the atmosphere each day through evapotranspiration. That's enough water to fill about five bathtubs!

How much carbon does the Amazon rainforest currently store in its trees?

About 50 billion tonsAbout 150 billion tonsAbout 250 billion tonsAbout 500 billion tons

What is evapotranspiration?

The process of cutting down treesThe process of carbon storage in plantsThe process by which trees release water into the air through their leavesThe process of rain formation in clouds

According to the passage, what percentage of the Amazon would need to disappear to potentially trigger a tipping point?

10 to 15 percent20 to 25 percent30 to 35 percent40 to 45 percent

What does it mean when the passage says some parts of the Amazon have shifted from a carbon sink to a carbon source?

These areas now plant more trees than beforeThese areas now absorb more carbon than they releaseThese areas now release more carbon than they absorbThese areas no longer contain any carbon

How does climate change threaten the Amazon's self-watering system?

By causing rising temperatures and deeper droughts that dry out the forestBy making the forest too wet to support tree growthBy preventing clouds from forming over the forestBy stopping winds from moving across the region

If the Amazon transformed from rainforest to grassland, what would be the impact on global climate?

It would have no effect on global climateIt would cool the planet by reflecting more sunlightIt would release 90 billion tons of carbon and accelerate global warmingIt would only affect weather in South America

Based on the passage, what role does wind play in the Amazon's water cycle?

Wind prevents rain from falling on the forestWind carries moisture-rich air across the forest so water can fall as rain multiple timesWind removes all moisture from the atmosphereWind has no role in the Amazon's water cycle

The Amazon rainforest currently absorbs about two billion tons of carbon dioxide each year.

TrueFalse

According to the passage, protecting the Amazon only requires stopping deforestation in the region.

TrueFalse

What is a 'tipping point' as described in the passage?

The highest point of a mountain in the AmazonA critical threshold where the forest can no longer sustain itselfThe amount of rain that falls each yearThe temperature at which trees stop growing