Lesson 61 of 84 ยท Chemical Reactions
Simulationโญ 30 XP๐งช Potion KitchenThe Particle Model of Matter (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
A mixture contains two or more substances that are not chemically combined. You can often separate a mixture using physical methods like filtering, evaporating, or using a magnet.
Key Words
- product
- conservation of mass
Steps
Read about Chemical Reactions and write down three key facts.
Separate a mixture of sand, salt, and iron filings using a magnet, water, and a filter. Record each step and what you separated.
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 is sublimation?
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
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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