Kid's assignment: write sentences with vocabulary words. Everyone else: "My skates has four wheels." This kid: "My iron tap is rusted because of oxygen." The teacher crossed out "because of oxygen" and wrote "it is very old."
Somewhere, a materials scientist is shedding a single tear. Iron oxide formation isn't a function of age—it's a redox reaction. This kid deserves extra credit, not a red pen. Future chemist in the making, currently being corrected by someone who probably thinks rust is just what happens when metal gets tired.
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