Lesson 9 of 10 · Properties of Matter

Experiment⭐ 30 XP🧪 Potion Kitchen

Types of Mixtures

🧪Lab Brief #9

Properties of Matter.

🎯 Your mission

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

⚡ The twist

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

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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

Mixtures can be homogeneous (uniform, like salt water) or heterogeneous (non-uniform, like trail mix). Colloids like milk appear uniform but contain tiny suspended particles.

Key Words

Tap a word to see its definition.

Materials Needed

salt

Safety First

Keep strong magnets away from phones, bank cards and anyone with a pacemaker.
Mop up spills straight away so nobody slips, and keep liquids away from sockets.

Steps

Step 1 — Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 — Do

Separate a mixture of sand, salt, and iron filings using a magnet, water, and a filter. Record each step and what you separated.

Step 3 — Observe

Compare the before and after states.

Step 4 — Record

Write your conclusion: did the results match your hypothesis? What would you change next time?

Check Your Understanding

Question 1

1 of 3

What happens to particle motion when matter is heated?

How sure are you going to be?😐 maybe

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Where you see this in real life

This is happening in your kitchen right now — every time food cooks.

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Stretch Challenge

Try this in real life this week.

Find one ingredient in a snack and look up what it does.

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For the dinner table

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

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