Lesson 28 of 84 · Information Processing
Experiment⭐ 30 XPMuscles: How You Move (Part 2)
Information Processing.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
Nature loves to surprise the careful watcher.
Mind = Blown
🔬 The more you look, the more nature shows you.
Make a hypothesis first
Before you start: write down what you think will happen, and why.
What You'll Learn
Muscles work in pairs to move bones. When one muscle contracts (gets shorter), the opposite muscle relaxes (gets longer). The biceps and triceps are an example of this pairing.
Key Words
- digestive system
- respiratory system
Materials Needed
- tape
- mirror
- stethoscope (toy)
- sponge
- water
- blindfold
Safety First
- Be careful with scissors — ask an adult for help if needed.
Steps
Read the introduction and identify the main idea of this lesson.
Map your pulse: measure your heart rate at rest, after 1 minute of walking, and after 1 minute of jumping. Create a bar graph and explain the differences.
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 3What connects muscles to bones?
Where you see this in real life
This shows up in your everyday life more than you'd think.
Stretch Challenge
Try this in real life this week.
Try one experiment in real life this week — even a tiny one.
For the dinner table
“What's the most surprising thing you learned 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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