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4. unstoppableuncontrollablee reblogged this from presidentme and added:

   wow. i never got it. until now.

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    is in our chemistry room what

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    el oh el

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20. doctorwhothefuckisthis reblogged this from pleatedjeans and added:

    My chem teacher has this in her room

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    I once had a science teacher with this poster.

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46. guac-in-the-churros reblogged this from tumboner and added:

    Had this in my school’s lab

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