Lesson 77 of 84 · Engineering and Design
Experiment⭐ 30 XP🛠️ Engineer ShopWhat Is a Fair Test? (Part 4)
Engineering and Design.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ 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 fair test changes only one thing. If you change two things, you will not know which one made the difference.
Key Words
Tap a word to see its definition.
Materials Needed
- ruler
- markers
- popsicle sticks
Safety First
- Wear safety goggles when mixing liquids.
- Wash hands after handling materials.
Steps
Look at the new words. Can you say each one?
Design a boat from foil that can hold the most pennies without sinking.
Use your senses to describe what you notice.
Write 1-2 sentences about what happened.
Check Your Understanding
Question 1
1 of 3What does 'predict' mean?
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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