Halloween: A Day of Spooky, Tasty, and Interesting Chemicals

Halloween: A Day of Spooky, Tasty, and Interesting Chemicals

Halloween is when the rest of the world briefly catches up to how chemists live year-round: surrounded by weird smells, questionable substances, and the occasional explosion.

It’s basically National Chemistry Week with a sense of humor. Candy corn or a Butterfinger? Answer: They're both vile.

Candy corn has the taste and consistency of saccharine-sweetened earwax
, while the inside of a Butterfinger cannot be from any substance native to Earth.

Other Halloween rituals also involve disgusting or exotic substances. And a chemistry lesson about them – even a very gentle one – is more "trick" than "treat." Here are a few Halloween chemicals that you don't normally encounter.

Halloween wouldn’t be complete without those glowing necklaces and wands. And behind them is some interesting (and historic) chemistry.

Author's summary: Halloween is a day of spooky and interesting chemicals.

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American Council on Science and Health American Council on Science and Health — 2025-10-30

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