Lesson 50 of 84 · Matter
Experiment⭐ 30 XP🧪 Potion KitchenSorting by Properties (Part 2)
Sorting by Properties (Part 2).
🎯 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
Materials can be sorted by their properties: hard or soft, rough or smooth, bendy or stiff.
Key Words
Tap a word to see its definition.
Materials Needed
- paper towels
- thermometer
- strainer
- ice cubes
Safety First
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
Steps
Talk about what you already know about Matter.
Stretch, bend, and tear different materials (paper, foil, rubber band). Record what happens to each.
Compare what happened to what you predicted.
Tell the class one thing you learned today.
Check Your Understanding
Question 1
1 of 3Why does a heavy rock sink in water?
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 this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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