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ChemMatters | DECEMBER 2017/JANUARY 2018 3
Vol. 35, No. 4 December 2017/January 2018
An electronic subscription to is now available with your print subscription.
More information at: www.acs.org/chemmatters or by calling 1-800-333-9511.
ON THE COVER: SHUT TERSTOCK; ISTOCK
Find your complete
Spanish translations, Teacher’s
Guide, and videos at
www.acs.org/chemmatters
More On The Web!
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DEPARTMENTS
2 Connecting Chemistry and Art
Sometimes modern techniques for analyzing matter yields images
so striking they resemble fine art.
4 Open for Discussion: Are Vitamin Supplements Necessary?
By Michael Tinnesand
19 As a Matter of Fact
Developing Advanced Lithium-Ion Batteries
FEATURES
5 Got Vitamin D?
By David Warmflash
Most of our daily requirements come from a healthy diet. But one
notable exception is vitamin D, which is naturally present in only a few
foods. Fortunately, it is one vitamin our body can produce on its own.
7 Cheesy Science
By Sarah Mullen Gilbert
Cheese is kind of weird. It is storable milk. It can last weeks or years
longer than milk and there is such a variety of cheese. But when did
we start making and eating cheese? And why?
Spanish translation available online!
10 Drained: The Search for Long-Lasting Batteries
By Fedor Kossakovski
Cell phones allow us to communicate constantly, but why can’t
the batteries last a little longer? ChemMatters set out to find some
answers.
13 Teens and Depression
By Christine Scaduto
Our emotions have gotten the better of all of us at times and control
how we act and feel. But what happens when we get so depressed
that we can’t find a way out?
16 The Write Stuff: The Fascinating Chemistry of Pencils
By Brian Rohrig
Pencils were the original ‘word processors’ . There is a surprising
amount of history and chemistry behind this simple writing instrument.
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Teens and
Depression p. 13
c
Got Vitamin D? p. 5
COVER STORY:
Science p. 7
Use the LinkReader mobile app on p. 7
to see a video. explaining how cheese is made.
