Ethics is a branch of philosophy. Not everyone studies ethics in high school.

Harper Lee wrote "To Kill a Mockingbird." This classic novel is required reading for many high school students.

This is false. Dinosaurs and humans did not walk the earth at the same time.

You might learn about schizophrenia in a psychology class. Although psychology is offered in many high schools, it's typically an elective course.

Ecology is a branch of biology. There are different branches of ecology, including human ecology and landscape ecology.

You would study atoms in a chemistry course. Not all high school students take chemistry.

Gauche means lacking social polish. This is actually a French word.

Geology is an earth science course. Not all high school students take a geology course.

Geology is not a math course. Both geometry and trigonometry are math courses.

Astronomy is the study of space. The word "astron" is Greek for "star."

J.D. Salinger wrote "Catcher in the Rye." This is a coming-of-age classic.

A day is the amount of time it takes the earth to spin around once on its axis. You should have learned this in science class.

The study of politics might be part of political science. Political science is considered a social studies class.

Charles Darwin proposed the theory of natural selection. This theory proposes that only the strong survive.

It takes the earth 365 days to travel around the sun once. That's one year.

About 71 percent of the earth is covered by water. Surely you didn't guess 100 percent!

Middle Eastern Studies is part of the Sociology department. A Middle Eastern Studies course would give you social studies credit.

There are 50 stars on the U.S. flag. That's because there are 50 states.

The word "belie" means to be in contradiction with. Did you know the answer?

The euro is the basic monetary unit of most members of the European Union. The lira is Italian, and the franc is French.

Mitosis is the process by which a cell divides into two smaller cells. You probably learned this in science class.

Respiration is the single complete act of breathing in and out. We take in oxygen and breathe out carbon dioxide.

Rubies are red. They are a gemstone.

Diamonds are made out of graphite. Hey, isn't that what's in pencils?

Economics is the study of how economies work. Most high school students will study economics as part of social studies.

"Romeo and Juliet" was not written by George Orwell. Both "1984" and "Animal Farm" were written by Orwell.

The Pacific Ocean is the largest ocean. The word "pacific" means calm or peaceful.

Cultural anthropology might also be called social anthropology. Both are the study of societies and social life.

History is the study of the past. Most people learn some history in high school.

Jupiter is the biggest planet in our solar system. Pluto is the smallest (if you still consider it a planet).

The skull protects the brain. The femur is in the leg.

You might see a production of Shakespeare's "Romeo and Juliet" in high school. If you're in drama, you might even act in the play.

Circumnavigate means to travel completely around something. Do you remember who was the first person to circumnavigate the globe?

Lava is what molten rock is called once it has exited a volcano. It's called magma before it erupts.

The answer to the equation 9x9=? is 81. We figured you'd need an easier one to end this quiz.