What Is Spinal Cord

About this printable What Is Spinal Cord science reading passage, NGSS-aligned (Grades 3-5)

This engaging Grade 4 science reading passage introduces students to the spinal cord and its critical role in the human body. Aligned with NGSS standard 4-LS1-2, the passage explains how the spinal cord is a thick bundle of nerves protected inside the backbone that serves as the main communication highway between the brain and the rest of the body. Students learn how messages travel up the spinal cord from the body to the brain and how instructions travel down from the brain to control body movements. The passage uses age-appropriate language and relatable examples to help fourth graders understand this foundational concept about the nervous system. Audio integration supports diverse learners by providing text-to-speech functionality. The resource includes a simplified differentiated version for struggling readers, Spanish translations, vocabulary glossary, multiple-choice comprehension questions, writing activities, and graphic organizers. These materials help students build foundational understanding of how body systems work together, preparing them for hands-on investigations and deeper discussions about human body structures and functions.

Written by Workybooks TeamPublished by Workybooks

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Sample passage and quiz from What Is Spinal Cord

A chiropractor examines a patient's spine in a clinical setting. Health care and rehabilitation focus. — Image credit: www.kaboompics.com / Pexels.

The spinal cord is a thick bundle of nerves that runs down the middle of your back. A nerve is like a wire that carries messages between different parts of your body. The spinal cord is protected inside your spine, which is also called your backbone. Your spine is made of small bones stacked on top of each other, like building blocks.

The spinal cord works like a highway for information. It connects your brain to the rest of your body. Messages travel up the spinal cord from your body to your brain. For example, when you touch something hot, nerves in your hand send a message up your spinal cord to your brain. Your brain then sends instructions back down the spinal cord to your hand, telling it to move away quickly.

Without the spinal cord, your brain could not communicate with your body below the neck. This means you would not be able to feel things with your hands or move your legs. You also could not control important body functions like breathing and digestion. The spinal cord and brain work together as a team to control everything your body does.

Your spine protects the spinal cord because it is very important and delicate. Just like a helmet protects your brain, the bones in your spine protect your spinal cord from injury.

Interesting Fact: Your spinal cord is about as thick as your thumb and is around 18 inches long in adults. Messages travel through it at speeds up to 268 miles per hour!