Lesson 37 of 84 · Human Impacts on Earth
Lesson⭐ 30 XP🌿 Wild JungleSound: Pitch and Volume (Part 2)
Human Impacts on Earth.
🎯 Your mission
Understand the idea. Then look for it everywhere.
⚡ 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
Sound waves have properties including amplitude (loudness), frequency (pitch), and wavelength. Higher frequency means higher pitch. Greater amplitude means louder sound.
Key Words
- criteria
- iteration
Steps
Study the diagram and label the parts you recognize.
Build a working anemometer using paper cups and straws. Calibrate it by counting rotations in a known wind speed.
Observe what happens and describe it in detail.
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3Can sound travel through a vacuum?
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.”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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