Smooth and Rough

Lab Brief #3

🎯 Your mission

Learn the rule. Then catch nature using it.

⚡ The twist

Nature loves to surprise the careful watcher.

What you'll learn

Some things are smooth, some are rough. Touch different objects and feel the difference!

Key words

Make a hypothesis first

Before you start: write down what you think will happen, and why.

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

Step 1 of 4 · Read

Say the vocabulary words out loud. Can you repeat them?

Step 2 of 4 · Do

Touch ice and watch it change. What happens when it gets warm?

Step 3 of 4 · Observe

Use your eyes, ears, and hands to explore. What do you notice?

Step 4 of 4 · Record

Color a picture to show what happened.

Question 1 of 2

Which sense tells you if something is rough?

Question 2 of 2

Is sandpaper smooth or rough?

Mind = blown

🔬 The more you look, the more nature shows you.

Nice work!

You got 0 of 2 right.

🎯

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

✨ More to explore

🌍 Where you see this in real life: This shows up in your everyday life more than you'd think.

🏆 Stretch challenge (try it this week): Try one experiment in real life this week — even a tiny one.

👨‍👩‍👧 For the dinner table: “What's the most surprising thing you learned today?”

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

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