Math
This number, the ratio of a circle's circumference to its diameter, begins 3.14159.
What is pi?
his document, adopted July 4, 1776, declared the thirteen colonies free of British rule.
What is the Declaration of Independence?
This is the longest river in Africa.
What is the Nile?
This playwright wrote Romeo and Juliet and Hamlet.
Who is William Shakespeare?
This gas do plants absorb during photosynthesis.
What is carbon dioxide?
In a right triangle, this theorem states that a² + b² = c².
What is the Pythagorean theorem?
This wall divided a German city from 1961 until its fall in 1989.
What is the Berlin Wall?
This mountain range separates France from Spain.
What are the Pyrenees?
Scout Finch narrates this Harper Lee novel set in Maycomb, Alabama.
What is To Kill a Mockingbird?
This organelle is known as the powerhouse of the cell.
What is the mitochondrion?
The slope of the line y = 4x − 7 is this number.
What is 4?
This 1215 English charter limited the power of the king and influenced later constitutional law.
What is the Magna Carta?
This is the largest country in the world by land area.
What is Russia?
A comparison using "like" or "as" is called this figure of speech.
What is a simile?
This element has the atomic number 1.
What is hydrogen?
This is the value of x in the equation 2ˣ = 32.
What is 5?
This 1919 treaty formally ended World War I and imposed heavy reparations on Germany.
What is the Treaty of Versailles?
This imaginary line at 0° longitude passes through Greenwich, England.
What is the prime meridian?
This George Orwell novel features Big Brother, Newspeak, and the Ministry of Truth.
What is 1984?
This law states that for every action there is an equal and opposite reaction.
What is Newton's third law of motion?
In the quadratic formula, the expression b² − 4ac is called this, and its sign tells you how many real roots exist.
What is the discriminant?
This 1954 Supreme Court case ruled that racial segregation in public schools was unconstitutional.
What is Brown v. Board of Education?
This South American country is the only one with coastline on both the Caribbean Sea and the Pacific Ocean.
What is Colombia?
This Greek epic follows Odysseus on his ten-year journey home from Troy.
What is The Odyssey?
This scientist proposed the theory of evolution by natural selection in On the Origin of Species.
Who is Charles Darwin?