Lesson 51 of 84 · Engineering and Design
Lesson⭐ 30 XP🛠️ Engineer ShopChange One Thing (Part 3)
Engineering and Design.
🎯 Your mission
Master the concept. Use it tomorrow.
⚡ The twist
Every solution creates a new problem. That's good — that's the next project.
Mind = Blown
🌉 The Eiffel Tower can grow 6 inches taller in summer because metal expands when hot.
Make a hypothesis first
Predict: which design will hold the most weight?
What You'll Learn
When scientists test ideas, they change one thing at a time and keep everything else the same.
Key Words
Tap a word to see its definition.
Steps
Read about Engineering and Design with a partner or grown-up.
Build the strongest bridge you can using only paper and tape. Test it by placing coins on top.
Watch carefully. What happens?
Draw and write about what you learned.
Check Your Understanding
Question 1
1 of 3What does a scientist do?
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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