Pencils & Pencil Lead Writing Assignment

This assignment is DUE THURSDAY.

Formal writing assignments must be typed unless otherwise noted in the assignment. You must use standard formatting: 1 inch margins, 12 pt. font, Arial or Times New Roman style font. You may use double spacing between questions but should use single line spacing within the response to each question. You need not rewrite the question but should include a reference from the question in your reply. For example for question 2 below, you may start your response, “We call it pencil lead because…” Your responses must be in complete sentences using proper grammar.

1) Provide a half page summary of the article, “What’s That Stuff? Pencils & Pencil Lead?”
2) Provide at least one unanswered question that you encountered when reading about pencils and pencil lead?
3) What are the three different types of markings that may be found stamped on pencils and what do they mean?
4) Why do we say pencil “lead” if there is no lead in it? What is the chemical symbol for lead?
5) Graphite is an allotrope (molecular configuration) of what element? Define allotrope and provide the name and uses of two other examples of allotropes of this element.

(Art)iFacts Science Report

For our (Art)iFacts (click link for a PDF of the full project description) project you are required to write a science report that will be in the fashion of a "What's That Stuff" article from the Journal of Chemical and Engineering News. Below are links to the report rubric and example articles read for or in class.
Report Rubric

Chicken Egg (What's that stuff)

Pencils & Pencil Lead (What's that stuff)

Oil Paints (What's that stuff?)

Exeter This Week

You will working on pages 18 and 19 this week. Homework listed is will be checked for completion on the following day that it is assigned.
Monday assigned homework: Page 19 problems 1-5
Tuesday: Exeter presentations & assigned homework Page 18:problems 1-2 with Page 19: problems 10 & 11
Wednesday assigned homework: Page 19 problems 6-9
Thursday: Exeter presentations
Friday: Quiz of all problems from page 18 & 19