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Lesson 31 of 84 · Engineering and Design

Lesson30 XP🛠️ Engineer Shop

Change One Thing (Part 2)

🧪Lab Brief #31

Engineering and Design.

🎯 Your mission

Learn the rule. Then catch nature using it.

⚡ The twist

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

🤯

Mind = Blown

🚀 The Saturn V rocket burned 20 tons of fuel per second at liftoff.

🔮

Make a hypothesis first

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

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

Step 1Read

Read about Engineering and Design with a partner or grown-up.

Step 2Do

Build the strongest bridge you can using only paper and tape. Test it by placing coins on top.

Step 3Observe

Watch carefully. What happens?

Step 4Record

Draw and write about what you learned.

Check Your Understanding

Question 1

1 of 3

What 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 card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

🖨️

Checkout complete lesson on Engineering and Design for 2nd Grade

Get the full Engineering and Design track as a printable PDF — all lessons, worksheets, and answer keys.

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Change One Thing (Part 2) — Engineering and Design | 2nd Grade Science | LittleActivity