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KnovaKNOVA — A free reading app with curriculum-aligned passages on History & Science for Grades 3-8

How Bones Protect Organs — Reading Comprehension

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Grades
  • 3
  • 4
  • 5
Standards
  • NGSS 4-LS1-1
  • LS1.A
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About This Reader

This engaging 250-word reading passage helps Grade 4 students understand how bones protect organs, aligned with NGSS standard 4-LS1-1 and the Disciplinary Core Idea LS1.A: Structure and Function. Students explore how the skull acts like a helmet to protect the brain, the rib cage serves as a shield around the heart and lungs, and the spine protects the spinal cord. The passage uses age-appropriate language and relatable analogies to help fourth graders connect the shape of each bone group to what it protects. This audio-integrated resource includes a simplified differentiated version for struggling readers, complete Spanish translations of both passages, a comprehensive glossary of key terms, multiple-choice comprehension questions, writing activities, and graphic organizers. Students learn why bones are essential for protecting soft organs from damage and understand the relationship between bone structure and function. Perfect for introducing skeletal system concepts, this passage builds foundational understanding that prepares students for hands-on investigations and classroom discussions about human body systems and how organisms are structured to support survival and growth.

Perfect For:

👩‍🏫 Teachers
  • • Reading comprehension practice
  • • Auto-graded assessments
  • • Literacy skill development
👨‍👩‍👧‍👦 Parents
  • • Reading practice at home
  • • Comprehension improvement
  • • Educational reading time
🏠 Homeschoolers
  • • Reading curriculum support
  • • Independent reading practice
  • • Progress monitoring

Reading Features:

📖
Reading Passage
Engaging fiction or nonfiction text
Comprehension Quiz
Auto-graded questions
📊
Instant Feedback
Immediate results and scoring
📄
Printable Version
Download for offline reading
🔊
Read Aloud
Voice-over with word highlighting

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