How Many Hearts Does an Octopus Have? — Reading Comprehension
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Grades
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PRINT+DIGITAL RESOURCE
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.
About This Reader
This interactive science reading passage, titled "How Many Hearts Does an Octopus Have? A Triple Beat!", answers a common and fascinating question about octopus anatomy. Aligned with NGSS Life Science standards, particularly MS-LS1-3 (Body Systems), the passage explains that octopuses possess three hearts: two branchial hearts to pump blood through their gills for oxygenation, and one systemic heart to circulate oxygenated blood to the rest of their body. It highlights their unique blue blood, which contains copper-based hemocyanin for oxygen transport. The text emphasizes how this complex triple-heart circulatory system is a vital adaptation for their active, intelligent lifestyle, ensuring efficient oxygen delivery in their marine environment. This resource is excellent for fostering reading comprehension, expanding vocabulary related to animal physiology and adaptations, and sparking curiosity about unique biological systems.
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:
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Reading Passage
Engaging fiction or nonfiction text
❓
Comprehension Quiz
Auto-graded questions
📊
Instant Feedback
Immediate results and scoring
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Printable Version
Download for offline reading
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Read Aloud
Voice-over with word highlighting
