Learn how the nervous system sends messages, controls body actions, and helps you sense the world around you.
Read each problem carefully. Write your answers in complete sentences when possible. Show your thinking in the space provided.
How the brain, spinal cord, and nerves help the body work
Health - Grade 4-5
- 1
What are the three main parts of the nervous system described in many elementary health lessons?
- 2
Explain why the brain is often called the control center of the body.
- 3
A student touches a cold ice cube and quickly pulls their hand away. Which body system helped the student feel the cold and react?
- 4
Put these steps in the correct order: The brain understands the message. Nerves in your skin sense heat. You move your hand away. A message travels to the brain.
- 5
What job does the spinal cord do in the nervous system?
- 6
Name two senses that send information to the brain, and tell what each sense helps you notice.
- 7
Choose the best word to complete the sentence: Nerves carry messages using tiny signals between the body and the ____.
- 8
The skull protects the brain. Why is protecting the brain important?
- 9
List two safe habits that can help protect your nervous system during sports or active play.
- 10
What is a reflex? Give one example of a reflex.
- 11
How do sleep and rest help the brain?
- 12
Draw or describe a simple pathway that shows how a message travels when you smell popcorn.
- 13
The brain has different areas that help with different jobs. Match each job with the body action: thinking, moving muscles, seeing, and hearing.
- 14
Why is it important to tell an adult if someone hits their head hard or feels dizzy after a fall?
- 15
Write one sentence that explains how the nervous system helps you learn in school.