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How Many Hearts Does an Octopus Have?
Interactive passage with audio narration, comprehension questions, and printable PDF.
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- Format
- Interactive (Online), Printable (PDF)
- Grades
- 345678
- Subjects
- readingelascience
- Languages
- English, Spanish
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 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.
Written by Workybooks TeamPublished by Workybooks
Preview
Sample passage and quiz content
Who it's for
Perfect for the way you teach
Teachers
- Build comprehension skills
- Auto-graded quiz
- Differentiated reading
Parents
- Read together at home
- Improve fluency
- Quiet reading time
Homeschoolers
- Reading curriculum support
- Independent practice
- Track Lexile growth
Topics
Octopushow many heartsthree heartssystemic heartbranchial heartsblue bloodhemocyaninunique animalmarine animaladaptationcirculatory systemcephalopodintelligentoxygen deliverybiodiversityNGSSMS-LS1-3
