Lesson 23 of 30 · Simple Machines
Lesson⭐ 30 XP🛠️ Engineer ShopPush or Pull the Door
Simple Machines.
🎯 Your mission
Understand the idea. Then look for it everywhere.
⚡ The twist
Constraints make you more creative, not less.
Mind = Blown
🛠️ The first computer bug was a literal moth stuck inside a machine in 1947.
Make a hypothesis first
Before you test: how many tries until it works?
What You'll Learn
A door opens when you push or pull the handle. Which does your door use?
Key Words
Tap a word to see its definition.
Steps
Say the vocabulary words out loud. Can you repeat them?
Push a toy car gently, then push it hard. Which push made it go farther?
Look closely! What do you see?
Draw a picture of what you learned today.
Check Your Understanding
Question 1
1 of 3What makes a ball roll?
Where you see this in real life
Every bridge, building, and gadget you've ever used started with this.
Stretch Challenge
Try this in real life this week.
Find something that's broken at home and try to figure out *why* it broke.
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.
Ready?
Push or Pull the Door
Understand the idea. Then look for it everywhere.
Full screen — no distractions
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