Lesson 29 of 84 · The Human Body
Experiment⭐ 30 XP🌿 Wild JungleThe Heart and Circulatory System (Part 2)
The Human Body.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
Living things break the rules of non-living things — find the rule they break.
Mind = Blown
🦠 You have more bacterial cells in your body than human cells.
Make a hypothesis first
Predict: what will happen to the plant if you change the water?
What You'll Learn
The circulatory system includes the heart, blood vessels, and blood. Arteries carry oxygen-rich blood away from the heart, and veins return oxygen-poor blood to the heart.
Key Words
- response
- reflex
Materials Needed
- stethoscope (toy)
- sponge
- water
- blindfold
- cotton balls
- cups
Safety First
- Protect your work surface with newspaper or plastic.
- Adult supervision recommended.
Steps
Review the background information on The Human Body before starting.
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 system defends the body against germs?
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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