Math
Geography
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100

In Geometry, this term describes a triangle where all three interior angles measure exactly 60 degrees.

Equilateral Triangle

100

This is the longest river in South America flows primarily through Brazil and Peru. 

Amazon River

100

It is the chemical symbol for gold on the periodic table.

Au

100

He served as the commander of the Continental Army during the American Revolution and later became the first U.S. President.

George Washington

100

In 2013 Disney animated hit features a snowman named Olaf and a princess with ice powers named Elsa

Frozen

200

Represented by a Greek letter, this famous mathematical constant of approximately 3.14159 is the ratio of a circle's circumference to its diameter.

Pi

200

This European country is the only one to share a land border with the United Kingdom.

Ireland

200

This is the natural process by which plants convert carbon dioxide and water into food using sunlight.

Photosynthesis

200

This supposedly unsinkable British passenger liner struck an iceberg and sank on its maiden voyage in April 1912.

RMS Titanic

200

This actor kicked off the Marvel Cinematic Universe by starring as Tony Stark in the 2008 film Iron Man

Robert Downey Jr.

300

Found frequently in nature, this famous number sequence starts with 0 and 1, and each subsequent number is the sum of the two preceding ones (0,1,1,2,3,5)

Fibonacci Sequence

300

This landlocked African country's capital is Addis Ababa.

Ethiopia

300

Making up about 78% of the air we breathe, this is the most abundant gas in Earth's atmosphere

Nitrogen

300

This famous network of ancient trade routes connected China with Middle East and Europe

Silk Road

300

The HBO fantasy series is based on George R.R. Martin's book series A Song of Ice and Fire.

Game of Thrones

400

In a right-angled triangle, this specific name is given to the longest side, which sits directly opposite the 90-degree angle

Hypotenuse

400

Mount Erebus, the southernmost active volcano on Earth, is located on this continent

Antarctica

400

Scoring a perfect 10 on the Mohs hardness scale, it is the hardest naturally occuring mineral on Earth

Diamond

400

In 1215, King John of England was forced to sign this foundational document, which established that the King was not above the law.

Magna Carta

400

Released in 1969, the cover of this legendary Beatles album features the four band members walking across a zebra crossing

Abbey Road

500

Often mistaken for parabola, this is the specific mathematical name for the U-shaped curve assumed by a freely hanging chain or cable supported only at its ends

Catenary

500

Known for its extreme temperatures, this capital of Mongolia is widely considered the coldest national capital city in the world.

Ulaanbaatar

500

In fluid dynamics, this principle explains how airplane wings generate lift, stating that an increase in the speed of a fluid occurs simultaneously with a decrease in its pressure.

Bernoulli's Principle

500

This decisive 1815 battle in present-day Belgium marked the final defeat of French Emperor Napoleon Bonaparte

Battle of Waterloo

500

Often referred to as the "Mozart of Madras," this legendary music director took home two Academy Awards in 2009 for his work on Slumdog Millionaire 

A.R. Rahman