Исследование свойств простого карандаша

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Исследование свойств простого карандаша

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Frost is not an obstacle ...

February 6, 2015 Irushkina Anna Andreevna

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Looking through the completed questionnaire drew attention to the answers about the frozen stick, as he draws after freezing ... There are answers that draws bad! How come? Decided to conduct an experiment itself ... After three days spent in the freezer, my pencil drawing is excellent! Can freeze with pencil and a piece of paper?

Machine translation

<p> Looking through the completed questionnaire drew attention to the answers about the frozen stick, as he draws after freezing ... There are answers that draws bad! How come? Decided to conduct an experiment itself ... After three days spent in the freezer, my pencil drawing is excellent! Can freeze with pencil and a piece of paper? </p>
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