Building Something That Has to Hold

Lab Brief #6

🎯 Your mission

Predict it first. Then prove yourself right (or wrong).

⚡ The twist

The first design always fails. That's the point.

What you'll learn

Engineers test to destruction on purpose. Loading a structure until it fails tells you where the weak point is, which is the only reliable way to know what to strengthen next time.

Key words

structure
Something built to carry a load without collapsing.
load
The weight or force a structure has to support.

Make a hypothesis first

Guess: what's the weakest part of this build?

Say your guess out loud — then find out if you were right.

Get ready

🧰 What you need

straws
tape
book
ruler

⚠️ Safety first

Keep fingers clear when the tower collapses and clear the desk edge first.

Step 1 of 4 · Read

Think about what you just learned: say what "structure" and "load" mean in your own words before you start.

Step 2 of 4 · Do

Build a tower from twenty straws and tape that must hold a book 20 cm above the desk. Test it, note exactly where it buckles, rebuild with the same materials, and test again.

Step 3 of 4 · Observe

Record what actually happened, including anything that did not match what you expected.

Step 4 of 4 · Record

Write a conclusion that answers the question this lesson opened with, and state your uncertainty.

Question 1 of 2

Testing a structure to failure tells you:

How sure are you?😐 maybe

Question 2 of 2

The weight a structure must carry is called the:

How sure are you?😐 maybe

Mind = blown

🛠️ The first computer bug was a literal moth stuck inside a machine in 1947.

Nice work!

You got 0 of 2 right.

Next: Making It Work for Someone Else All lessons

🎯

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

✨ More to explore

🌍 Where you see this in real life: Every bridge, building, and gadget you've ever used started with this.

🏆 Stretch challenge (try it 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?”

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