The Great Barrier Reef (Nonfiction Passage)
Written by Adi Ackerman, Head Teacher
"The Great Barrier Reef" is a 4th Grade nonfiction reading passage worksheet for ages 9-10: an article of about 220 words about the largest coral reef in the world and the scientists who study it, plus a page of five questions on the main idea, vocabulary in context and cause and effect. It covers Common Core RI.4.2 and includes an answer key.


2 pages in this set
Read about the Great Barrier Reef, then answer 5 questions on a vocabulary word, main idea, a detail about slow growth, and a simile. Part of our nonfiction passages collection. Aligned to Common Core standards.
How to use “The Great Barrier Reef” with 4th graders
Start with a minute of talk: What do you think builds a reef in the ocean? Then have students read the passage on page 1, about 220 words in 4 short paragraphs, pencil in hand. They can underline facts as they go. The second page asks five questions. Have students mark the sentence that proves each choice, then write the two responses in complete sentences. Check the work with the answer key.
Skills students practice in this 4th grade nonfiction passage
- Choose the main idea of the passage on "The Great Barrier Reef" and tell it apart from a supporting detail
- Work out what "vast" means from the words around it
- Write complete sentences to answer prompts such as "Why do scientists monitor the reef closely?"

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Curriculum Links
Common Core State Standards
Reading · 4th Grade
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FAQ
How to use “The Great Barrier Reef” with 4th graders
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Start with a minute of talk: What do you think builds a reef in the ocean? Then have students read the passage on page 1, about 220 words in 4 short paragraphs, pencil in hand. They can underline facts as they go. The second page asks five questions. Have students mark the sentence that proves each choice, then write the two responses in complete sentences. Check the work with the answer key.
What does this worksheet teach?
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The Great Barrier Reef gives 4th grade students a nonfiction passage of about 220 words about the largest coral reef in the world and the scientists who study it, followed by five questions. The questions practice the main idea, vocabulary in context and cause and effect, and the sheet is aligned to Common Core RI.4.2. An answer key is included.
What is "The Great Barrier Reef" about?
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The Great Barrier Reef is a nonfiction passage of about 220 words about the largest coral reef in the world and the scientists who study it. It is written for 4th grade readers (ages 9-10) and has 4 short paragraphs, so students can read it in one sitting.
Which reading skills does the The Great Barrier Reef worksheet practice?
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Its five questions, three multiple choice and two written, practice vocabulary in context, the main idea, key details and cause and effect. Questions include "What is the main idea of the passage". The sheet is aligned to Common Core RI.4.2, and the answer key is included so you can check responses quickly.
How can I introduce "The Great Barrier Reef" before students read?
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Try this conversation starter: What do you think builds a reef in the ocean? Before reading, preview the title and ask students what they already know. After reading, have them restate the topic in one sentence before they answer the questions.
How long does the The Great Barrier Reef worksheet take, and can I use it at home or in class?
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Most students need about 20 minutes for the passage and the questions together. The sheet works at a kitchen table with a parent talking through the written answers, or at a reading center as independent work on the main idea and vocabulary in context.
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Worksheet Details
| Grade | 4th Grade |
| Subject | Reading |
| Topic | Paragraphs & Passages |
| Standard | RI.4.2 |
| Pages | 2 pages |
| Difficulty | Medium |
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