Today’s Tough Trivia question category is Science: A unit prefix is a specifier that gos on the front of a unit of measurement to indicate multiples (1, 10, 100, etc.) or fractions (1/10, 1/100, 1/1000) of the unit. Some of those common prefixes are kilo, milli, mega, nano, etc. So your job is to come up with as many of those prefixes as you can, and the numbers they refer to (put them in order; it’s easier that way).

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Yesterday’s question: There are some artists who have become household names. And there are some works of art whose titles are equally famous. Given this alphabetical list of oil paintings, can you name the proper artist for each? Bonus points if you can put them in order of their creation.

The answers:

Arrangement in Grey and Black No. 1, aka Whistler’s Mother by James McNeill Whistler (1871)

The Child’s Bath by Mary Cassatt (1893)

American Gothic by Grant Wood (1930)

The Persistence of Memory by Salvador Dali (1931)

Horse’s Skull with Pink Rose by George

Guernica by Pablo Picasso (1937)

Self-Portrait with Thorn Necklace and Hummingbird by Frida Kahlo (1940)

Nighthawks by Edward Hopper (1942)

The Old Checkered House in Cambridge Valley by Grandma Moses (1943)

Number 17A by Jackson Pollock (1948)

Le Grand Cirque by Marc Chagall (1956)

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Ian’s Tough Trivia is a daily feature of this blog (Monday’s category is History; Tuesday is Arts; Wednesday is Science; Thursday is Entertainment; and Friday is Grab Bag). Each day, I post a tough question, as well as the answer to the previous day’s question. Simply comment on this post with your answer. I’ll approve the comments after the next question is posted. Sure, you can probably find the answers by searching the web, but what’s the fun in that?

And if you’ve got a favorite trivia question—or even just a topic for which you’d like to see a question—let me know! Reader participation is warmly encouraged.