Lesson 48 of 84 · Engineering and Design
Experiment⭐ 30 XP🛠️ Engineer ShopRepeat Your Experiment (Part 3)
Engineering and Design.
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ 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
Good scientists repeat their experiments to make sure the results are the same each time.
Key Words
Tap a word to see its definition.
Materials Needed
- ruler
- markers
- popsicle sticks
- pennies
- plastic wrap
- cardboard
Safety First
- Protect your work surface with newspaper or plastic.
- Adult supervision recommended.
Steps
Read the introduction. What is this lesson about?
Build a tower from spaghetti and marshmallows. Measure how tall you can make it.
Look for something that changed. What is it?
Circle the correct answer on your worksheet.
Check Your Understanding
Question 1
1 of 3Is it okay to make mistakes in science?
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.
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