Understanding the Titanic Disaster

While the doomed ocean liner Titanic might be the most famous ship in the world, how well do you really know its story? This quiz will test your knowledge of the ship and its disastrous end.

 

Understanding the American Revolution

You may be familiar with the road to the Declaration of Independence, but how much do you know about the war that delivered on its promise? This quiz will test your knowledge of the U.S. War of Independence.

Match The City To Its Nickname Quiz

You probably know New York is known as the Big Apple, but do you know the rest of these city nicknames? Test your knowledge of these city pseudonyms with this quick quiz.

 

Ultimate Animals Quiz

Could you lead the tour at your local zoo? Challenge your animal awareness with this quiz.

Comprehension Quiz: Cold War

Do you know when the Cold War almost turned hot?

Test your knowledge of the Cold War with this quiz.

Galaxies: Fact or Fiction?

Does the word “galaxy” come from the Greek word for milk? Can galaxies unite? Learn more about galaxies by taking this star-studded astronomy quiz.

The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years (6.4 megaparsecs)^[3] away from Earth in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781 and was communicated that year to Charles Messier, who verified its position for inclusion in the Messier Catalogue as one of its final entries.

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There are about a thousand galaxies in the universe.

Galaxies vary considerably in size, composition, structure, and activity, but nearly all are arranged in groups, or clusters, containing from a few galaxies to as many as 10,000.

Most galaxies contain only a few dozen stars.

Each is composed of millions to trillions of stars