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A mood ring changes its color based on how hot or cold it is.

Thermochromism is a chemical property where the temperature of a substance can change its color.[1] An example of an item that shows thermochromism is a mood ring.[2]

References[change | change source]

  1. Woodford, Chris (2017-02-06). "How do thermochromic materials work?". Explain that Stuff. Retrieved 2018-02-19.
  2. Helmenstine, Anne-Marie (2017-03-06). "How Mood Rings Work". ThoughtCo. Retrieved 2018-02-19.

Other websites[change | change source]