{"id":59676,"date":"2026-01-30T04:52:12","date_gmt":"2026-01-29T19:52:12","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=59676"},"modified":"2026-01-30T04:52:12","modified_gmt":"2026-01-29T19:52:12","slug":"this-is-science-bringing-copper-back-to-life-with-a-copper-plate-and-chopsticks-the-drama-of-oxidation-reduction","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=59676&lang=en","title":{"rendered":"This Is Science! Bringing Copper Back to Life with a Copper Plate and Chopsticks \u2014 The Drama of Oxidation & Reduction"},"content":{"rendered":"

I am Ken Kuwako, your Science Trainer. Every day is an experiment!<\/b><\/span><\/p>\n

Can you imagine a piece of metal, scorched jet-black, returning to its original shiny state in an instant? It might look like magic, but it is pure science. The metal we often use in the science lab, copper<\/b>, is actually a brilliant performer capable of dramatic transformations. Today, I want to introduce you to the surprising drama of “Oxidation and Reduction” played out by oxygen and hydrogen.<\/p>\n

Oxidation: Watch Beautiful Copper Turn Jet-Black!<\/h3>\n

I first saw this experiment in an elective class taught by a fellow teacher. Seeing the students’ eyes light up at the vivid transformation made me want to cheer right along with them!<\/p>\n

The method is incredibly simple. First, take a beautiful reddish-brown copper plate<\/b>\u2014the color of a brand new penny\u2014and heat it steadily over a gas burner. In an instant, that gorgeous metallic luster vanishes, replaced by a jet-black<\/b> surface. This happens because the heat causes the copper to bond violently with oxygen in the air, forming a new substance called copper oxide (CuO)<\/b>. In science, we call this process oxidation<\/b>.<\/p>\n

Here is the chemical equation for this reaction:<\/p>\n

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Reduction Part 1: The Rainbow Revival with Chopsticks<\/h3>\n

Now, this is where the “magic” really begins. What do you think happens if we place a simple wooden chopstick<\/b> on top of that blackened copper?<\/p>\n

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Take a look! Right where the chopstick touches the surface, that familiar reddish-brown copper starts to peek through again.<\/p>\n