For your exam, remember diamond is a tough gem, graphite is a soft pencil lead, and fullerene is a fancy football-shaped molecule—all are just carbon wearing different masks. But in my one-room school, the real difference is which one you can actually show. I sketch them with chalk, because my "lab" has a blackboard and a broken scale. My father’s old radio has a carbon mic, yaar—it’s the graphite in our life that actually lets voices travel home.
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