I shift hues with temperature, revealing secrets of the heat I bear. What am I?
Category: Science · Difficulty: hard
Hint: Think of color-changing mugs or mood rings.
Answer
Thermochromic Substances
Explanation
Thermochromic materials change color in response to temperature variations.
This is a hard science riddle — a tricky one that takes a little thought. The answer is Thermochromic Substances.
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