Lesson 7 of 9 · Matter and Atoms
Experiment⭐ 30 XP🧪 Potion KitchenSublimation
Matter and Atoms.
🎯 Your mission
Run the experiment. Find out what really happens.
⚡ The twist
If it bubbles, something invisible is escaping.
Mind = Blown
💧 Hot water can freeze faster than cold water under the right conditions. Nobody fully understands why.
Make a hypothesis first
Guess: will the fizz be loud, soft, or none at all?
What You'll Learn
Sublimation happens when a solid turns directly into a gas without becoming a liquid first. Dry ice (frozen carbon dioxide) sublimes at room temperature, and mothballs slowly shrink and vanish the same way.
Key Words
Tap a word to see its definition.
Materials Needed
- sugar
Safety First
- Adult supervision required for any heating. Hot glassware looks identical to cold — use tongs.
- Mop up spills straight away so nobody slips, and keep liquids away from sockets.
Steps
Look at the vocabulary words and write a definition for each in your own words.
Test how temperature affects dissolving: dissolve sugar in cold, warm, and hot water. Count stirs needed for each and create a data table.
Observe what happens and describe it in detail.
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What happens during evaporation?
Where you see this in real life
This is happening in your kitchen right now — every time food cooks.
Stretch Challenge
Try this in real life this week.
Find one ingredient in a snack and look up what it does.
For the dinner table
“What's something we cook that mixes things together this way?”
Next Smart Experiment
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Send it to a parent who's looking for a 10-minute kitchen science win.
Ready?
Sublimation
Run the experiment. Find out what really happens.
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