Lesson 64 of 84 · Human Impacts on Earth
Experiment⭐ 30 XP🌿 Wild JungleBiodiversity and Ecosystems (Part 3)
Human Impacts on Earth.
🎯 Your mission
Run the experiment. Find out what really happens.
⚡ The twist
What the body does in one minute is wilder than any cartoon.
Mind = Blown
🦠 You have more bacterial cells in your body than human cells.
Make a hypothesis first
Guess: how does the body solve this problem?
What You'll Learn
Biodiversity—the variety of life in an ecosystem—makes ecosystems more resilient. Loss of biodiversity from human activities threatens ecosystem stability worldwide.
Key Words
- criteria
- iteration
Materials Needed
- pennies
- plastic wrap
- cardboard
- tape
- scissors
- straws
Safety First
- Use materials only as directed in the experiment.
Steps
Study the diagram and label the parts you recognize.
Build a simple seismograph using a pen, cup, string, and paper. Shake the table and record the marks. Can you detect bigger vs. smaller shakes?
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 is refraction?
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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