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100

This punctuation mark can show possession, form contractions, or mark omitted letters.

What is an apostrophe?

100

This civilization built Machu Picchu in the Andes.

Who were the Inca?

100

Plants release this gas during photosynthesis.

What is oxygen?

100

In Greek mythology, this hero killed the Minotaur inside the Labyrinth.

Who is Theseus?

100

This is the largest country in the world by land area.

What is Russia?

200

The word “alphabet” comes from the names of the first two letters of this ancient language. 

What is Greek?

200

In 1215, English barons forced King John to seal this document limiting royal power.

What is the Magna Carta?

200

A metal spoon feels colder than a wooden spoon at the same temperature because metal conducts this more quickly.

What is heat or thermal energy?

200

This Shakespeare play features the feuding Montagues and Capulets.

What is Romeo and Juliet?

200

The Danube River empties into this sea.

What is the Black Sea?

300

A word such as “buzz,” “hiss,” or “clang” that imitates a sound is called this.

What is onomatopoeia?

300

This West African ruler’s 14th-century pilgrimage to Mecca became famous for his enormous wealth.

Who was Mansa Musa?

300

The blue color of the daytime sky is mainly caused by this scattering of shorter wavelengths of light.

What is Rayleigh scattering?

300

In George Orwell’s Animal Farm, this type of animal becomes the ruling class.

What are pigs?

300

This European country is famously shaped like a boot.

What is Italy?

400

This term describes a word that is its own opposite, such as “sanction,” meaning either to permit or to penalize.

What is anaphora?

400

The  defenestration of officials in Prague in 1618 helped ignite this major European conflict.

What was the Thirty Years’ War?

400

This law explains why you move backward when you jump forward from a small boat.

What is Newton’s third law of motion?

400

This ancient Mesopotamian epic follows a king of Uruk who seeks immortality after the death of Enkidu.

What is The Epic of Gilgamesh?

400

The city of Istanbul sits on two continents: Europe and this one.

What is Asia?

500

This term describes a word that is its own opposite, such as “sanction,” meaning either to permit or to penalize.

What is a contronym (or auto-antonym)?

500

This 1884–85 meeting set rules for European colonization and trade in Africa, without African representatives.

What was the Berlin Conference?

500

This mysterious substance does not emit light but is inferred from its gravitational effects on galaxies.

What is dark matter?

500

In Dante’s Divine Comedy, this Roman poet guides Dante through Hell and most of Purgatory.

Who is Virgil?

500

This imaginary line at 0 degrees latitude divides Earth into the Northern and Southern Hemispheres.

What is the Equator?