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pH Scale Interactive Lab
Acids · Bases · NeutralizationExplore the pH Scale
The pH scale measures how acidic or basic a substance is.
It runs from 0 (most acidic) to 14 (most basic).
pH 7 is neutral. Each step is 10× stronger than the last.
Click any segment or substance below!
👆 Click a segment on the scale above, or a substance card below
Common Substances
Pour a Liquid onto the Rock
Select a liquid, then hit Pour. Watch the indicator strip change color and the rock react based on acidity!
Pick a liquid
🧪 pH indicator strip
awaiting liquid...
Select a liquid from the left, then click pour!
Sort the Substances
Drag each substance into the correct category: Acidic (pH below 7), Neutral (pH = 7), or Basic/Alkaline (pH above 7).
🔴 Acidic
(pH below 7)
(pH below 7)
⚪ Neutral
(pH = 7)
(pH = 7)
🔵 Basic
(pH above 7)
(pH above 7)
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