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Science Reading Comprehension Passage 21: DNA PDF

DNA structure and replication are explained in plain language across a reading passage, followed by 10 multiple-choice questions, six open-response questions, a spelling section, and fully explained solutions.
Grades
Grades 5–7, Elementary, Middle School, Homeschool Resources
Pages
8
File type
PDF
Answer key
Included

Instant download · Updated Mar 27, 2025

Subject
Science, Life Sciences, Biology, Common Core, ESL, Language Development, ELA, Spelling, Reading Comprehension, Reading
Topic
science, elementary
Resource types
Worksheets & Printables, Worksheets, Assessments, Teacher Tools, Tests, Quizzes and Tests
Answer key
Included

About this resource

What's inside this resource

Free Reading Passage on DNA for Life Science

What's inside this free product?

Science Reading Comprehension Passage: DNA

Independent PDF Version:

This is the independent PDF version containing one lesson.

Product Info:

8 PAGES (US English with Answers) PDF Version

Teaching Duration: 90 Minutes

Science Reading Comprehension Outline:

Introducing a comprehensive resource tailored for 5th and 6th graders, this product offers enriching reading passages supplemented with illustrative pictures and graphs to clarify key concepts. Aligned with the Common Core State Standards (CCSS), it offers a hassle-free approach to teaching, given that the bulk of the preparation is already done for you.

The passages present a diverse set of questions – from multiple choice to data analysis and fill-in-the-blanks. This ensures a rich blend of high-interest content and fundamental curriculum-based science themes.

With its versatility, you can seamlessly integrate these lessons into various classroom settings, whether it's whole class discussions, morning exercises, independent desk tasks, small group engagements, contingency plans for substitute teachers, regular homework assignments, or even themed activities for holidays.

FULL CATALOG OF DOWNLOAD LINKS HERE

Grade 5/6 Links:

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In the classroom

Teaching tips & learning objectives

Learning objectives

  • Explain how DNA's base-pair code (A-T, G-C) functions as an instruction manual for a cell

  • Describe how DNA replicates and explain why identical twins share DNA while fraternal twins do not

  • Use domain-specific science vocabulary (organism, nucleus, chromosome, geneticist) correctly

Teaching tips

  • Read the passage's spiral-staircase and instruction-manual analogies aloud before the questions, since several multiple-choice items (1, 4, 5, 6) test recall of those exact comparisons.

  • Use the answer key's quoted supporting sentences as a model for how to cite evidence from a text, since each explained answer points back to the exact line in the passage.

  • Assign the spelling section after the reading and question sections, since its six words (organism, nucleus, chromosome, geneticist, compounds, reproduction) are the same vocabulary used throughout the passage and answer key.

Skills covered

  • Reading informational science text — comprehending a two-page explanatory passage on DNA structure and function.

  • Citing textual evidence — the answer key models pointing to the exact passage sentence that supports each answer.

  • Domain-specific vocabulary — spelling and defining six genetics terms drawn directly from the passage.

Good to know

Questions teachers ask about this resource

Are the six open-response questions given model answers too, not just the multiple-choice ones?

Yes — each of the six 'Additional Questions' has a full written model answer, in addition to explanations for all 10 multiple-choice questions.

What vocabulary does the spelling section cover?

Six science terms used throughout the passage: organism, nucleus, chromosome, geneticist, compounds, and reproduction, each given as a definition with only a couple of starting letters as a clue.

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