Lesson 2 of 9 · Matter and Atoms
Experiment⭐ 30 XP🧪 Potion KitchenAcids and Bases
Matter and Atoms.
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ 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
Acids have a pH below 7 and taste sour, while bases have a pH above 7 and feel slippery. A pH of 7 is neutral, like pure water.
Key Words
Tap a word to see its definition.
Materials Needed
- vinegar
- baking soda
- paper towels
Safety First
- Wear eye protection, keep the substance off skin, and wash your hands when you finish.
- Mop up spills straight away so nobody slips, and keep liquids away from sockets.
Steps
Look at the vocabulary words and write a definition for each in your own words.
Test 5 household liquids (vinegar, milk, lemon juice, baking soda water, soap) with pH paper. Classify each as acid, base, or neutral.
Use your senses (except taste) to describe what you notice.
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3Which has a pH below 7?
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?”
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Acids and Bases
Predict it first. Then prove yourself right (or wrong).
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