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9th Grade Trivia

Challenge your freshman-year knowledge with questions spanning biology, algebra, world history, English literature, earth science, and more โ€” everything a 9th grader should know.

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Questions (150 of 150)

๐ŸŸกmedium

What is the Pythagorean theorem formula?

๐ŸŸขeasy

Which war was fought between the North and South in the United States?

๐ŸŸขeasy

What is the term for a word that means the opposite of another word?

๐ŸŸขeasy

Which ocean is the largest?

๐Ÿ”ดhard

Who wrote 'The Canterbury Tales'?

๐ŸŸกmedium

What is the formula for the circumference of a circle?

๐ŸŸกmedium

What novel by George Orwell depicts a dystopian future under totalitarian rule?

๐ŸŸขeasy

What is the largest continent by area?

๐ŸŸกmedium

What layer of Earth's atmosphere do we live in?

๐ŸŸขeasy

What type of triangle has all three sides equal?

๐ŸŸขeasy

Who was the first President of the United States?

๐ŸŸขeasy

Who wrote 'To Kill a Mockingbird'?

๐ŸŸกmedium

What is the term for a government ruled by a king or queen?

๐ŸŸขeasy

What is the term for the distance around a circle?

๐ŸŸขeasy

In the equation y = mx + b, what does 'm' represent?

๐ŸŸกmedium

What empire was ruled by Julius Caesar?

๐ŸŸขeasy

What is the longest river in the world?

๐ŸŸกmedium

What is the quadratic formula used to solve?

๐ŸŸขeasy

What gas do plants absorb from the atmosphere during photosynthesis?

๐Ÿ”ดhard

What is the conjugate of the complex number 3 + 4i?

๐ŸŸขeasy

What force keeps us on the ground?

๐ŸŸขeasy

How many chromosomes do humans have?

๐ŸŸกmedium

What number system is based on powers of 2?

๐Ÿ”ดhard

What is the name of the process by which organisms best adapted to their environment survive and reproduce?

๐ŸŸขeasy

What is the term for matter that has a definite volume but no definite shape?

๐ŸŸกmedium

What are the building blocks of proteins?

๐ŸŸขeasy

What is the subject in the sentence: 'The cat sat on the mat'?

๐Ÿ”ดhard

What was the main cause of the Peloponnesian War?

๐ŸŸขeasy

What is the chemical formula for water?

๐ŸŸขeasy

In which year did World War I begin?

๐ŸŸกmedium

What is the function of the ribosomes in a cell?

๐ŸŸขeasy

What is the smallest prime number?

๐ŸŸกmedium

What is the sum of the interior angles of a quadrilateral?

๐ŸŸกmedium

What vitamin does the body produce when exposed to sunlight?

๐ŸŸขeasy

What is the value of pi rounded to two decimal places?

๐Ÿ”ดhard

What structure in the cell is responsible for packaging and shipping proteins?

๐Ÿ”ดhard

What is the difference between an endothermic and exothermic reaction?

๐ŸŸกmedium

In what year was the U.S. Constitution ratified?

๐ŸŸกmedium

What process do cells use to divide and create two identical copies?

๐Ÿ”ดhard

What ancient Greek philosopher wrote 'The Republic'?

๐ŸŸกmedium

What civilization is credited with inventing the first writing system, cuneiform?

๐ŸŸกmedium

What type of bond involves the sharing of electrons between atoms?

๐ŸŸขeasy

What is the process by which plants make food using sunlight?

๐Ÿ”ดhard

In biology, what is the term for the observable physical traits of an organism?

๐ŸŸขeasy

What is the formula for the area of a rectangle?

๐ŸŸกmedium

What literary term describes a recurring symbol or idea in a work of literature?

๐ŸŸกmedium

What is the term for a comparison between two unlike things without using 'like' or 'as'?

๐ŸŸขeasy

What is the main conflict in a story called?

๐ŸŸกmedium

What is the name of the scale used to measure earthquake intensity?

๐Ÿ”ดhard

What is the molarity of a solution that contains 2 moles of solute in 500 mL of solution?

๐ŸŸกmedium

Who was the leader of the Protestant Reformation in Germany?

๐ŸŸขeasy

What is the outermost layer of the Earth called?

๐Ÿ”ดhard

What is Avogadro's number approximately equal to?

๐ŸŸกmedium

What is the pH of pure water?

๐ŸŸกmedium

What treaty ended World War I?

๐ŸŸกmedium

Who wrote 'The Odyssey'?

๐ŸŸขeasy

What part of speech is a word that describes a noun?

๐ŸŸขeasy

What does the term 'democracy' literally mean?

๐ŸŸกmedium

What ancient trade route connected China to the Mediterranean?

๐Ÿ”ดhard

What battle in 1066 led to the Norman conquest of England?

๐ŸŸขeasy

What continent is Egypt located on?

๐ŸŸกmedium

What narrative point of view uses 'I' and 'me'?

๐ŸŸกmedium

What literary device is an exaggeration for emphasis?

๐ŸŸกmedium

What is the value of the expression 3โด?

๐Ÿ”ดhard

What phenomenon explains why a moving observer measures a different frequency of sound than a stationary one?

๐ŸŸขeasy

What type of rock is formed from cooled lava or magma?

๐ŸŸกmedium

What type of cell division produces sex cells (gametes)?

๐Ÿ”ดhard

What is the name of the theorem that states every polynomial equation of degree n has exactly n roots (counted with multiplicity)?

๐Ÿ”ดhard

What is the name of the supercontinent that existed about 300 million years ago?

๐Ÿ”ดhard

What Enlightenment philosopher wrote 'Two Treatises of Government'?

๐Ÿ”ดhard

What is the half-life of carbon-14 used in radiocarbon dating?

๐Ÿ”ดhard

What period in European history is known as the 'Age of Reason'?

๐ŸŸขeasy

What is the slope of a horizontal line?

๐ŸŸกmedium

What is the difference between mass and weight?

๐Ÿ”ดhard

What mathematical concept describes a ratio that compares a number to 100?

๐Ÿ”ดhard

What literary movement emphasized emotion, nature, and individualism in the late 18th century?

๐Ÿ”ดhard

What concept in economics describes the next best alternative foregone when making a choice?

๐ŸŸขeasy

What is the freezing point of water in degrees Fahrenheit?

๐ŸŸกmedium

What is the term for the movement of molecules from high concentration to low concentration?

๐Ÿ”ดhard

What is an unreliable narrator in literature?

๐ŸŸขeasy

What is the basic unit of life?

๐Ÿ”ดhard

What is the complementary base pair for adenine in DNA?

๐Ÿ”ดhard

What is the law of conservation of mass?

๐Ÿ”ดhard

What is the process by which RNA is made from a DNA template?

๐ŸŸกmedium

What structure in plant cells is not found in animal cells?

๐Ÿ”ดhard

What is iambic pentameter?

๐ŸŸกmedium

What economic system is based on private ownership and free markets?

๐Ÿ”ดhard

What document, signed in 1215, limited the power of the English king?

๐ŸŸขeasy

Who wrote the play 'Romeo and Juliet'?

๐ŸŸกmedium

What is the least common multiple of 6 and 8?

๐ŸŸขeasy

What is the boiling point of water in degrees Celsius?

๐ŸŸกmedium

What is the distributive property?

๐ŸŸขeasy

What figure of speech compares two things using 'like' or 'as'?

๐Ÿ”ดhard

What is the formula for the volume of a cylinder?

๐ŸŸกmedium

What event in 1789 marked the beginning of the French Revolution?

๐Ÿ”ดhard

What is the electron configuration of the element sodium (Na)?

๐Ÿ”ดhard

What is the irrational number represented by the square root of 2 approximately equal to?

๐Ÿ”ดhard

What year did the Byzantine Empire fall to the Ottoman Turks?

๐Ÿ”ดhard

What is the term for the minimum amount of energy required to start a chemical reaction?

๐ŸŸขeasy

What are the three states of matter?

๐ŸŸกmedium

In Shakespeare's 'Julius Caesar,' who says 'Et tu, Brute?'?

๐Ÿ”ดhard

What is the standard form of a linear equation?

๐Ÿ”ดhard

What is the function of transfer RNA (tRNA) in protein synthesis?

๐Ÿ”ดhard

What was the significance of the Gutenberg printing press, invented around 1440?

๐Ÿ”ดhard

What is the value of sin(90ยฐ)?

๐ŸŸกmedium

What gas makes up about 78% of Earth's atmosphere?

๐Ÿ”ดhard

In what year did the Magna Carta first limit royal authority in England?

๐ŸŸกmedium

What is the charge of a proton?

๐Ÿ”ดhard

What is the Mohs scale used to measure?

๐ŸŸขeasy

What is the main function of red blood cells?

๐Ÿ”ดhard

What type of function has a graph that forms a U-shape or parabola?

๐ŸŸขeasy

What organelle is known as the powerhouse of the cell?

๐ŸŸขeasy

What is a synonym?

๐ŸŸขeasy

How many degrees are in a triangle?

๐ŸŸขeasy

What is the largest organ of the human body?

๐Ÿ”ดhard

What is the relationship between frequency and wavelength of a wave?

๐ŸŸกmedium

What is absolute value?

๐Ÿ”ดhard

In algebra, what is the discriminant of a quadratic equation?

๐ŸŸกmedium

What is the role of chlorophyll in photosynthesis?

๐Ÿ”ดhard

What political system did Montesquieu advocate that influenced the U.S. Constitution?

๐ŸŸกmedium

What is the greatest common factor of 24 and 36?

๐ŸŸกmedium

What is the term for the highest point of a story's action?

๐ŸŸขeasy

What literary device gives human qualities to non-human things?

๐ŸŸขeasy

What planet is known as the Red Planet?

๐ŸŸขeasy

What is the product of any number multiplied by zero?

๐ŸŸขeasy

Which element has the chemical symbol 'Fe'?

๐ŸŸกmedium

What is the point where the x-axis and y-axis meet on a coordinate plane?

๐ŸŸกmedium

What organelle contains the cell's genetic material?

๐ŸŸกmedium

What ancient civilization built the pyramids at Giza?

๐ŸŸกmedium

What type of plate boundary causes earthquakes when plates slide past each other?

๐Ÿ”ดhard

What rhetorical device involves repeating the same word or phrase at the beginning of successive clauses?

๐Ÿ”ดhard

What is a punnett square used to predict?

๐ŸŸขeasy

What is the result of 7 ร— 8?

๐Ÿ”ดhard

What is the Hardy-Weinberg principle used to study?

๐Ÿ”ดhard

What is the name for a polynomial with exactly three terms?

๐Ÿ”ดhard

What is the oxidation state of oxygen in most compounds?

๐Ÿ”ดhard

What novel by Mary Shelley is considered the first science fiction story?

๐Ÿ”ดhard

What enzyme unzips the DNA double helix during replication?

๐ŸŸกmedium

What is the universal solvent?

๐ŸŸกmedium

What type of organism can make its own food?

๐ŸŸขeasy

What is 15% of 200?

๐Ÿ”ดhard

What is the atomic number of carbon?

๐ŸŸขeasy

What is DNA an abbreviation for?

๐ŸŸขeasy

What document declared American independence from Britain?

๐ŸŸขeasy

What was the Renaissance?

๐ŸŸขeasy

What type of blood vessel carries blood away from the heart?

๐ŸŸกmedium

What is an independent clause?

๐ŸŸกmedium

What is the reciprocal of 5?

๐Ÿ”ดhard

In 'Lord of the Flies' by William Golding, what does the conch shell symbolize?

๐ŸŸขeasy

What is the chemical symbol for oxygen?

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