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Reading Passage

Why Starfish are Important

Interactive passage with audio narration, comprehension questions, and printable PDF.

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Grades 1–2ElaReadingScienceEnglish · SpanishInteractive · Printable
Aligned toRI.1.1RI.1.2RI.1.8

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Comprehension quiz
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Why Starfish are Important preview and details

About this printable Why Starfish are Important science reading passage, NGSS-aligned (Grades 1-2)

Starfish play a crucial role in maintaining the delicate balance of marine ecosystems. As key predators, they help control the populations of mussels, clams, and other shellfish, preventing these species from dominating and crowding out other marine life. This regulatory function promotes biodiversity in intertidal and subtidal zones. Some starfish species are vital in protecting coral reefs by preying on coral-eating organisms, thus indirectly supporting the health of these important ecosystems. Starfish also serve as a food source for various marine animals, including certain fish species and seabirds, forming an essential link in oceanic food webs. Additionally, the presence and health of starfish populations often indicate overall ocean health, making them valuable bioindicators for marine scientists and conservationists. The study of starfish contributes significantly to our understanding of marine ecology, adaptation, and the impacts of environmental changes on ocean ecosystems, underscoring their importance in both scientific research and marine conservation efforts.
Written by Neha Goel TripathiPublished by Workybooks
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Sample passage and quiz from Why Starfish are Important

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Why Starfish are Important

Starfish play a big role in the ocean. They help keep the number of other animals in balance. Starfish eat animals like mussels and clams. If there were too many of these, they would crowd out other sea life. Some starfish eat coral-eating animals, which helps protect coral reefs. 

 

Starfish are also food for other animals like big fish and seabirds. Scientists study starfish to learn about ocean health. When there are many healthy starfish, it usually means the ocean is healthy too.

Comprehension quiz (4 questions)

1. How do starfish help the ocean?

By making waves
By cleaning the water
By keeping other animal numbers in balance
By making oxygen

2. What might happen if there were no starfish to eat mussels and clams?

The ocean would be cleaner
There would be too many mussels and clams
Fish would have more food
Coral reefs would grow faster

3. How do some starfish help protect coral reefs?

By eating coral-eating animals
By making shade for the coral
By cleaning the coral
By building new reefs

4. What can scientists learn from studying starfish?

How to swim better
How to build boats
About ocean health
About the weather
Curriculum

Common Core standards for Why Starfish are Important

RI.1.1

Ask and answer questions about key details in a text.

RI.1.2

Identify the main topic and retell key details of a text.

RI.1.8

Identify the reasons an author gives to support points in a text.

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