{"id":68880,"date":"2026-10-26T05:27:26","date_gmt":"2026-10-25T20:27:26","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=68880"},"modified":"2026-10-26T05:27:26","modified_gmt":"2026-10-25T20:27:26","slug":"not-red-the-rainbow-ammonia-fountain-that-turns-purple-green-and-blue","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=68880&lang=en","title":{"rendered":"Not Red?! The \u201cRainbow Ammonia Fountain\u201d That Turns Purple, Green, and Blue"},"content":{"rendered":"

Ken Kuwako, Science Trainer, here. Every day is an experiment!<\/strong><\/span><\/p>\n

Normally, the fountain shoots up bright red. But what if it turned purple, green, or blue instead? What would you think?<\/strong> At this year’s school festival, our Science Club put on a variety of science shows. Here, I’d like to share one of them: an experiment where a club member added indicators to create fountains in unexpected colors. It was such a clever twist that it made me say, “Huh, now that’s smart!” Students really can come up with ideas that go beyond anything you’d imagine.<\/p>\n

https:\/\/youtu.be\/UifOtTKTRm8<\/p>\n

What Is the Classic “Ammonia Fountain”?<\/h3>\n

In the ammonia fountain experiment, you fill a flask with ammonia gas, squeeze a little water into it with a dropper, and the water in the beaker shoots up through a tube in a dramatic fountain<\/a>.<\/p>\n

\u7406\u79d1\u5b9f\u9a13\u306f\u30c9\u30e9\u30de\u3060\uff01\u624b\u306b\u6c57\u63e1\u308b\u30a2\u30f3\u30e2\u30cb\u30a2\u5674\u6c34\u30c1\u30e3\u30ec\u30f3\u30b8\u306e\u4e00\u90e8\u59cb\u7d42\uff01\uff08\u5b9f\u9a13\u306e\u6e96\u5099\u304b\u3089\u65b9\u6cd5\u307e\u3067\uff09<\/a><\/p><\/blockquote>\n