This learning resource is available in interactive and printable formats. The interactive worksheet can be played online and assigned to students. The Printable PDF version can be downloaded and printed for completion by hand.
This Grade 4-5 level science passage, 'Your Brain is Your Control Center,' introduces students to the vital role of the brain in the human body. Aligned with NGSS standards, the passage explains how the brain acts as the body's command center, processing information, controlling movements, and helping us think, learn, and remember. Key scientific vocabulary such as neurons, nervous system, cerebrum, and reflexes are highlighted and defined. The passage uses real-world examples to connect science to everyday life, such as catching a ball or tasting food. An 'Interesting Fact' section offers additional engagement. The resource includes a glossary, Spanish translation, multiple-choice quiz, and grade-appropriate writing activities. The content is audio-integrated for accessibility, ensuring all learners can engage with the material. This resource is ideal for classroom or home learning to build foundational knowledge about the human brain and nervous system.
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Brain acts as your body’s control center. Image by meo / Pexels.
The brain is one of the most important organs in your body. It acts as your body’s control center. The brain sends and receives messages that help you move, think, feel, and remember things.
Your brain is made up of billions of special cells called neurons. These neurons use tiny electrical signals to communicate with each other. When you touch something hot, your neurons quickly send a message to your brain, and your brain tells your hand to move away. This process is part of your nervous system, which includes your brain, spinal cord, and nerves.
The largest part of your brain is called the cerebrum. The cerebrum helps you solve math problems, read stories, and talk with friends. Another part, the cerebellum, helps you balance and move smoothly. The brainstem controls basic actions like breathing and your heartbeat, even when you are asleep.
Your brain also lets you use your five senses: sight, hearing, smell, taste, and touch. For example, when you eat an apple, your brain helps you taste the sweetness and feel the crunch. If you play sports, your brain helps you catch a ball by quickly processing what your eyes see and telling your muscles what to do.
Sometimes, your brain reacts very fast without you even thinking. This is called a reflex. For example, when a doctor taps your knee, your leg kicks out automatically. Reflexes help protect your body from harm.
Interesting Fact: Did you know your brain uses about 20% of all the energy your body needs, even though it is only about the size of a grapefruit?
What is the brain's main job?
Control the bodyPump bloodDigest foodProtect bones
What are neurons?
Cells that send messagesBones in the armParts of the heartFood for the brain
Which part helps you balance?
CerebellumCerebrumBrainstemSpinal cord
What would happen if your brain did not process senses?
You couldn't taste or seeYou would run fasterYou would sleep lessYour bones would grow
How does the brain help in sports?
Processes what eyes seeMakes you tallerCools your bodyChanges your hair color
What is a reflex?
A fast, automatic actionA way to eatA slow movementA type of food
The brain helps control breathing. True or false?
TrueFalse
Which word means 'body's message system'?
Nervous systemDigestive systemCirculatory systemSkeletal system
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