WONDER #1682: What Kind of Pencil Is Your Favorite?
Question 1 of 3
What is the primary material used in pencils that leaves a mark on paper?
Question 2 of 3
A pencil with harder graphite will tend to leave what kind of a mark?
Question 3 of 3
What type of pencil uses a mechanism to push small pieces of graphite through a hole at the end?
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