Lesson 55 of 84 ยท Chemical Reactions
Simulationโญ 30 XP๐งช Potion KitchenCrystals: How They Form (Part 2)
Chemical Reactions.
๐ฏ Your mission
Push the limits. See what changes.
โก The twist
Mixing two safe things doesn't always make a safe thing.
Mind = Blown
๐ Every color you see is your brain inventing a translation of light frequencies.
Make a hypothesis first
Predict: will the mixture get hotter, colder, or stay the same?
What You'll Learn
Crystallization occurs when a solution becomes supersaturated and dissolved particles form an orderly solid structure. Snowflakes, salt crystals, and rock candy form this way.
Key Words
- base
- endothermic
Steps
Study the diagram and label the parts you recognize.
Heat ice and record the temperature every minute as it melts and then boils. Graph the temperature changes and label each phase change.
Compare the before and after states.
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3What is the chemical formula for water?
Where you see this in real life
This is happening in your kitchen right now โ 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
โWhat's something we cook that mixes things together this way?โ
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.
Checkout complete lesson on Chemical Reactions for 7th Grade
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