Lesson 13 of 84 · The Human Body
Lesson⭐ 30 XP🌿 Wild JungleNeurons and Nerve Signals
The Human Body.
🎯 Your mission
Master the concept. Use it tomorrow.
⚡ The twist
What the body does in one minute is wilder than any cartoon.
Mind = Blown
🐙 An octopus has 9 brains and 3 hearts.
Make a hypothesis first
Guess: how does the body solve this problem?
What You'll Learn
Neurons are specialized cells that transmit electrical and chemical signals throughout the nervous system. Sensory neurons carry signals from receptors to the brain.
Key Words
- hormone
- skeletal system
Steps
Read the introduction and identify the main idea of this lesson.
Build a model arm using cardboard tubes, string (tendons), and rubber bands (muscles). Show how muscles work in pairs to bend and straighten the elbow.
Compare the before and after states.
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3What converts sound waves into nerve signals?
Where you see this in real life
Your own body is doing this thousands of times every second.
Stretch Challenge
Try this in real life this week.
Find one thing about your body that's different from a friend's. Wonder why.
For the dinner table
“Tell me something you noticed about your own body today.”
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