Lesson 4 of 84 · Engineering and Design
Experiment⭐ 30 XP🛠️ Engineer ShopScientific Models: Representing Reality
Engineering and Design.
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ The twist
The first design always fails. That's the point.
Mind = Blown
🛠️ The first computer bug was a literal moth stuck inside a machine in 1947.
Make a hypothesis first
Guess: what's the weakest part of this build?
What You'll Learn
Models help scientists represent complex systems. Physical models (like a globe), mathematical models (like equations), and computer models all simplify reality to make it easier to study.
Key Words
- experiment
- data
- observation
Materials Needed
- cups
- aluminum foil
- ruler
- markers
- popsicle sticks
- pennies
Safety First
- Handle glass items carefully to avoid breakage.
- Do not mix unknown chemicals together.
- Tie back long hair before starting the experiment.
Steps
Review the background information on Engineering and Design before starting.
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?
Look for patterns in your observations.
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3What makes a good scientific investigation?
Where you see this in real life
Your phone, your bike, your shoes — all designed with this idea.
Stretch Challenge
Try this in real life this week.
Build something — anything — out of stuff in your recycling bin.
For the dinner table
“What's something around the house you'd redesign — and how?”
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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