Mountain Patterns on Earth — Reading Comprehension
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3
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Standards
NGSS 4-ESS2-2
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This learning resource is available in interactive and printable formats. The interactive worksheet can be played online and assigned to students. The Printable PDF version can be downloaded and printed for completion by hand.
This 250-word reading passage introduces fourth-grade students to mountain patterns on Earth, aligned with NGSS standard 4-ESS2-2. Students learn that mountains are not randomly scattered but form in long chains called mountain ranges. The passage explores familiar examples including the Rocky Mountains stretching from Canada to New Mexico, the Andes running along South America's west coast, and the Himalayas across Asia. Through accessible language and real-world examples, students discover that major mountain ranges follow predictable patterns—often appearing along continent edges or through ocean floors. This foundational understanding prepares students for hands-on map activities where they trace mountain patterns globally. The passage includes audio integration for diverse learners, bold vocabulary terms with immediate definitions, and engaging facts appropriate for fourth graders. Supporting activities include multiple-choice comprehension questions testing recall and application, writing prompts requiring explanation and connection-making, and graphic organizers for analyzing patterns. Spanish translations of both standard and simplified versions ensure accessibility for English language learners. This resource builds essential earth science knowledge about landform patterns while developing map-reading and pattern-recognition skills crucial for understanding Earth's dynamic surface features and plate tectonics concepts introduced in later grades.
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"Cordillera de los Andes" by Jorge Morales Piderit / Wikimedia Commons.
Mountains are not scattered randomly across Earth. They tend to form in long chains or ranges—groups of mountains that stretch for hundreds or thousands of miles. Understanding these patterns helps scientists predict where earthquakes and volcanoes might occur.
The Rocky Mountains stretch from Canada all the way to New Mexico. That's more than 3,000 miles! The Andes Mountains run along the entire west coast of South America, making them the longest mountain range on land. The Himalayas stretch across Asia and include Mount Everest, the tallest mountain on Earth.
When you look at a world map, you can see that major mountain ranges follow patterns. They often run along the edges of continents—large land masses like North America, South America, and Asia. Some mountain ranges even form through the middle of ocean floors, though we cannot see them without special equipment.
Scientists have discovered that mountains tend to form where giant pieces of Earth's outer layer push together. This is why mountain ranges often appear in lines rather than circles or scattered spots. By tracing these patterns on maps, we can learn about forces deep inside our planet that shape the land we see above.
Interesting Fact: The Mid-Atlantic Ridge is a mountain range under the Atlantic Ocean that runs from the Arctic Ocean to the tip of Africa—it's longer than any mountain range on land!
What are mountain ranges?
Mountains scattered randomly across EarthGroups of mountains in long linesSingle mountains standing aloneValleys between mountains