Lesson 12 of 84 · Matter and Reactions
Lesson⭐ 30 XP🧪 Potion KitchenPhysical vs Chemical Changes
Matter and Reactions.
🎯 Your mission
Master the concept. Use it tomorrow.
⚡ The twist
Color changes mean atoms are rearranging — even if you can't see them.
Mind = Blown
🧪 If you could remove all the empty space from atoms, the entire human race would fit in a sugar cube.
Make a hypothesis first
Before you mix: what color do you think it'll turn?
What You'll Learn
Chemical changes produce new substances with different properties. Signs of a chemical change include color change, gas production, temperature change, and formation of a precipitate.
Key Words
- periodic table
- compound
Steps
Look at the vocabulary words and write a definition for each in your own words.
Heat ice and record the temperature every minute as it melts and then boils. Graph the temperature changes and label each phase change.
Draw a detailed diagram of what you observe.
Write a conclusion: what did your results show? Did they match your prediction?
Check Your Understanding
Question 1
1 of 3What makes a physical change different from a chemical change?
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
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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