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KnovaKNOVA — A free reading app with curriculum-aligned passages on History & Science for Grades 3-8

How Does a Slingshot Work — Reading Comprehension

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Grades
  • 3
  • 4
  • 5
Standards
  • NGSS 4-PS3-1
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About This Reader

This 250-word reading passage introduces fourth-grade students to the concept of energy transformation using a slingshot as a concrete, relatable example. Aligned with NGSS standard 4-PS3-1 and Disciplinary Core Ideas PS3.A and PS3.C, the passage explains how pulling back a slingshot's elastic band stores elastic potential energy, and how releasing it converts that stored energy into kinetic energy. Students learn that the amount of energy stored depends on how far back the band is pulled—demonstrating that a system of objects may contain stored energy depending on their relative positions. The passage uses simple, age-appropriate language and avoids complex terminology, making it accessible to typical fourth-grade readers. Real-world comparisons help students understand the relationship between stored energy and motion. Audio integration supports diverse learners by providing multiple ways to access the content. The accompanying activities include multiple-choice questions testing recall and comprehension, short-answer writing prompts requiring students to explain and apply concepts, and graphic organizers that help visualize the cause-and-effect relationship between pulling distance and energy transformation. This foundational lesson prepares students for hands-on investigations and deeper discussions about energy in physical 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:

📖
Reading Passage
Engaging fiction or nonfiction text
Comprehension Quiz
Auto-graded questions
📊
Instant Feedback
Immediate results and scoring
📄
Printable Version
Download for offline reading
🔊
Read Aloud
Voice-over with word highlighting

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