Eli5: Why do magic erasers work so well?

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Today I had some students draw all over my classroom walls with markers and when I went to go wipe them with a wet paper towel it just smeared a bit. But when I used a wet magic erasers it came right off. What’s the difference and why does the magic work so well compared to paper towel?

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Anonymous 0 Comments

Super elif, magic erasers are made of very tiny things stuck together. When wet they unstick and are like very tiny grains of sand. So basically you’re just using very fine sand paper.

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