I can change colors and moods, yet I am not human. What am I?
Category: Science · Difficulty: medium
Hint: Think about what can show acidity or alkalinity.
Answer
A mood-altering substance
Explanation
pH indicators change color based on the acidity or basicity of a solution.
This is a medium science riddle — a moderate challenge for most people. The answer is A mood-altering substance.
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