Lesson 15 of 84 · Chemical Reactions
Lesson⭐ 30 XP🧪 Potion KitchenDissolving: Making Solutions
Chemical 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
Endothermic reactions absorb heat from surroundings, making things feel cold. Exothermic reactions release heat, like combustion. Both types of reactions are essential in nature.
Key Words
- pH
- acid
Steps
Study the diagram and label the parts you recognize.
Build a model of an atom using craft supplies. Show protons, neutrons, and electrons in the correct arrangement. Label each particle.
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 is a solvent?
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.
Checkout complete lesson on Chemical Reactions for 7th Grade
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