Lesson 29 of 84 · Matter

Experiment⭐ 30 XP🧪 Potion Kitchen

Hard Rocks and Soft Cotton

🧪Lab Brief #29

Hard Rocks and Soft Cotton.

🎯 Your mission

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

⚡ The twist

Mixing two safe things doesn't always make a safe thing.

🤯

Mind = Blown

💧 Hot water can freeze faster than cold water under the right conditions. Nobody fully understands why.

🔮

Make a hypothesis first

Predict: will the mixture get hotter, colder, or stay the same?

What You'll Learn

When water boils, you see steam rising up. The water is turning into a gas!

Key Words

smooth
big

Materials Needed

salt
sugar
vinegar
baking soda

Safety First

Wear safety goggles when mixing liquids.

Steps

Step 1 — Read

Listen carefully and repeat the new words about Matter.

Step 2 — Do

Sort objects into groups: hard things and soft things.

Step 3 — Observe

Did anything change? Point to what is different.

Step 4 — Record

Point to the things you used in the activity.

Check Your Understanding

Question 1

1 of 3

Does wood float in water?

How sure are you going to be?😐 maybe

🌍

Where you see this in real life

Your toothpaste, your soap, even your breakfast involves this.

🏆

Stretch Challenge

Try this in real life this week.

Ask a grown-up to help you mix two safe kitchen things. Predict what will happen first.

👨‍👩‍👧

For the dinner table

“What's something we cook that mixes things together this way?”

🎯

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.

🖨️

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