In elementary school, you learn a ton about U.S. geography, past presidents, fractions, and even musical instruments. But how much of that information do you actually retain into your adult years? Well, there's a way to find out: testing your knowledge with some tricky questions from the game show Are You Smarter Than a 5th Grader? You might be surprised to discover much you still remember—and how much you don't. And for a word you're almost certainly getting wrong every time you use it, check out This Is the Most Commonly Misspelled Word in the Country.

Category: 3rd Grade Math

Don't feel bad if you answered this math question incorrectly: On the show, computer science major Aswad Ali didn't get it right either!
And for location names most of us aren't saying correctly, check out The Most Mispronounced Places in America.

Category: 5th Grade World History

This was the final question for contestant Brett Connell when he appeared on Are You Smarter Than a 5th Grader? Instead of guessing, he decided to drop out with the money he'd already earned.
For what you're doing wrong every time you send something to your coworkers, This Is the Worst Way to End an Email, Research Shows.

Category: 3rd Grade Measurements

There are 3 teaspoons per tablespoon!
To find out which behaviors are bothering the people around you, check out 50 Things You Do Every Day That Annoy Other People.

Category: 2nd Grade Math

Thankfully contestant Bruce Eckelman got this question right and secured $1,000.
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Category: 5th Grade Chemistry

Though Eckelman knew the answer to this question, he chose to flip a coin to decide whether to answer it before he saw what it was. He could have walked away with $200,000!

A. Marble
B. Printing
C. Oil and canvas
D. Ceramics
Category: 2nd Grade Art & Music

This elementary school question was included in the video game version of Are You Smarter Than a 5th Grader?

A. Violin
B. Saxophone
C. Trumpet
Category: 1st Grade Music

If this question is any indication, first graders know a lot about musical instruments!

Category: 1st Grade Reading

On episode 3 of season 4 of Are You Smarter Than a 5th Grader?, master's student Alex incorrectly guessed that it was "The Princess and the Bride."

A. The table's length
B. The table's width
C. The table's weight
Category: 1st Grade Measurements

At least Alex got this question—worth $5,000—right!

Category: 5th Grade Life Sciences

Fun fact: Chlorophyll can also be found in algae and cyanobacteria!

Category: Social Studies

Contestant Ken Jennings decided not to go for this million-dollar question—even though he ended up having the correct answer!

Category: 2nd Grade Measurements

Answering this question correctly earned contestant Gregory Baldi $1,000.

Category: U.S. Geography

This million-dollar question was answered correctly by Nobel laureate George Smoot III. In the show's history, only two people have ever won the $1 million!

Category: 5th Grade Astronomy

In the version of the show hosted by John Cena, third-grade teacher Lindsey got this one wrong, guessing Mars instead.

Category: 10 Year Old Music

Actor Martine McCutcheon (who you probably know from Love Actually) missed this question in the U.K. version of the show, Are You Smarter Than a 10 Year Old? It's alright if you did as well—Americans know this type of note as a quarter note.
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