Lesson 81 of 84 · Matter

Experiment⭐ 30 XP🧪 Potion Kitchen

Building with Different Materials (Part 3)

🧪Lab Brief #81

Building with Different Materials (Part 3).

🎯 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.

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Make a hypothesis first

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

What You'll Learn

Stretchy materials like rubber bands can be pulled and they bounce back to their shape.

Key Words

temperature
water

Materials Needed

paper towels
thermometer
strainer

Safety First

Protect your work surface with newspaper or plastic.
Adult supervision recommended.

Steps

Step 1 — Read

Read about Matter with a partner or grown-up.

Step 2 — Do

Test 5 objects from your house: put each one in water. Make a chart of which sink and which float.

Step 3 — Observe

Watch carefully. What happens?

Step 4 — Record

Draw and write about what you learned.

Check Your Understanding

Question 1

1 of 3

What happens when water gets very cold?

How sure are you going to be?😐 maybe

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Where you see this in real life

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

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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.

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For the dinner table

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

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Next Smart Experiment

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

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

🖨️

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