Lesson 82 of 84 · The Human Body
Experiment⭐ 30 XP🌿 Wild JungleHow Your Eyes See (Part 5)
The Human Body.
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ 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
Reflexes are automatic responses that happen without conscious thought. When you touch something hot, your hand pulls away before your brain even registers the pain.
Key Words
- organ system
- tissue
- cell
Materials Needed
- ruler
- paper
- markers
- tape
- mirror
- stethoscope (toy)
Safety First
- Dispose of materials properly after the experiment.
Steps
Look at the vocabulary words and write a definition for each in your own words.
Test reaction time: have a partner drop a ruler and catch it. Record the centimeter mark 10 times. Calculate your average reaction time.
Watch carefully for any changes and note the time.
Create a data table to organize your measurements.
Check Your Understanding
Question 1
1 of 3What is the largest organ of the human body?
Where you see this in real life
This is why plants grow toward windows and why scabs form.
Stretch Challenge
Try this in real life this week.
Watch a plant or pet for 5 minutes today and write down what you noticed.
For the dinner table
“Tell me something you noticed about your own body today.”
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