Lesson 54 of 84 · Chemical Reactions
Lesson⭐ 30 XP🧪 Potion KitchenMetals and Nonmetals (Part 2)
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
Metals are generally shiny, conduct heat and electricity, and can be bent without breaking. Nonmetals are often dull, poor conductors, and brittle in solid form.
Key Words
- base
- endothermic
- exothermic
Steps
Review the background information on Chemical Reactions before starting.
Create a density column: carefully layer honey, dish soap, water, vegetable oil, and rubbing alcohol in a tall glass. Drop small objects in to test where they float.
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 3Why does oil float on water?
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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