The best fourth-grade trivia round is the one where the quiet map expert, the enthusiastic reader, and the kid who loves numbers all get their moment.
These 80 questions mix fractions, angles, word clues, science, geography, history, and a little detective work, with answers that leave room for a useful explanation.
Choose a starting point: Each round has ten questions, and the last round is a set of puzzles rather than memorized facts. Allow paper, sketches, and time to think instead of turning every question into a race.
Numbers, Fractions, and Decimals
Show the fractions and decimals on paper so everyone can see the numbers being compared.
- What is 36 multiplied by four?
Answer: 144. - What is 168 divided by six?
Answer: 28. - What is the smallest prime number?
Answer: Two. A prime number has exactly two positive factors. - Which is a factor of 24: five or six?
Answer: Six, because 24 divides by six without a remainder. - Is 21 prime or composite?
Answer: Composite. It has factors other than one and itself. - What is three-eighths plus two-eighths?
Answer: Five-eighths. - Write seven-tenths as a decimal.
Answer: 0.7. - Is 0.6 greater than, less than, or equal to 0.60?
Answer: Equal. Six-tenths is sixty-hundredths. - Write five-fourths as a mixed number.
Answer: One and one-fourth. - Which is greater, 0.48 or 0.5?
Answer: 0.5, which is the same as 0.50.
Angles, Shapes, and Measurement
A quick drawing makes these easier to talk through, especially when the question switches from area to perimeter.
- How many degrees are in a right angle?
Answer: 90 degrees. - What do we call an angle greater than 90 degrees but less than 180 degrees?
Answer: An obtuse angle. - What do we call straight lines in the same plane that remain the same distance apart and never meet?
Answer: Parallel lines. - What do we call two lines that meet at a right angle?
Answer: Perpendicular lines. - What tool measures an angle in degrees?
Answer: A protractor. - How many lines of symmetry does a square have?
Answer: Four: two through opposite side midpoints and two diagonals. - What is the area of a rectangle eight inches long and six inches wide?
Answer: 48 square inches. - What is the perimeter of a rectangle seven feet long and four feet wide?
Answer: 22 feet. - How many milliliters make one liter?
Answer: 1,000 milliliters. - How many grams make one kilogram?
Answer: 1,000 grams.
Language Clues and Storytelling
Read the example before asking for its name; recognizing how language works is more interesting than memorizing a definition alone.
- Is “as quiet as a mouse” a simile or a metaphor?
Answer: A simile. It makes a comparison using as. - What figure of speech is used in “The classroom was a zoo”?
Answer: A metaphor. The room is being compared with something else, not described literally. - What does the idiom “a piece of cake” usually mean when describing a task?
Answer: Something easy to do. - What punctuation mark shows possession in “Maya’s backpack”?
Answer: An apostrophe. - Which spelling means belonging to them: there, their, or they’re?
Answer: Their. - What prefix in submarine means under or below?
Answer: Sub-. - What does the root tele- mean in telephone and telescope?
Answer: Far or distant. - What reference book helps you find synonyms?
Answer: A thesaurus. - Is an account of someone’s life written by that person a biography or an autobiography?
Answer: An autobiography. - What do we call a story’s central problem or struggle?
Answer: Its conflict.
Earth Science and Evidence from the Past
This round separates processes that often get bundled together, such as breaking rock apart and carrying the pieces away.
- What process breaks rock down where it is, without necessarily moving it?
Answer: Weathering. - What process carries weathered material away through moving water, wind, ice, or gravity?
Answer: Erosion. - What is it called when transported sediment settles in a new place?
Answer: Deposition. - What is preserved evidence of past life in rock or sediment called?
Answer: A fossil. - Is a fossil footprint a body fossil or a trace fossil?
Answer: A trace fossil. It records an animal’s activity. - What kind of rock forms when molten rock cools and solidifies?
Answer: Igneous rock. - What kind of rock commonly forms from layers of sediment pressed and cemented together?
Answer: Sedimentary rock. - What kind of rock forms when existing rock changes under heat and pressure without completely melting?
Answer: Metamorphic rock. - What do we call the remains of plants and animals decomposing in soil?
Answer: Organic matter. - What is an area of land that drains water to the same outlet called?
Answer: A watershed or drainage basin.
Energy and Living Things
Look for what a structure or process does, from a circuit in a flashlight to a food chain outdoors.
- Does a simple battery-powered lamp need an open circuit or a closed circuit to stay lit?
Answer: A closed circuit, with a complete path for current. - What term describes a material such as copper that lets electric current pass through readily?
Answer: An electrical conductor. - What term describes the protective plastic covering around an electrical wire?
Answer: An electrical insulator. - What is light bouncing off a mirror called?
Answer: Reflection. - What is the bending of light as it passes between materials such as air and water called?
Answer: Refraction. - In a food chain, what term describes an organism such as grass that makes its own food?
Answer: A producer. - What organisms break down dead material and help return nutrients to an ecosystem?
Answer: Decomposers, including many fungi and bacteria. - What term describes a feature that helps an organism survive or reproduce in its environment?
Answer: An adaptation. - What are the tiny openings in leaves through which gases and water vapor can pass called?
Answer: Stomata. Offer this as a challenge question rather than an assumed vocabulary word. - What is the process by which plants use light energy to make sugars from water and carbon dioxide?
Answer: Photosynthesis.
World Geography and Maps
A map is welcome for this round, particularly when the fun comes from finding a place instead of remembering it instantly.
- What is the capital of Australia?
Answer: Canberra. - What is the capital of Brazil?
Answer: Brasília. - What language is the principal official language of Brazil?
Answer: Portuguese. - Which river flows through Paris?
Answer: The Seine. - Which country is directly south of the contiguous United States?
Answer: Mexico. - Which Great Lake is entirely within the United States?
Answer: Lake Michigan. - What do latitude measurements tell you: distance north or south of the equator, or east or west of the prime meridian?
Answer: Angular distance north or south of the equator. - What is a group or chain of islands called?
Answer: An archipelago. - What mountain range stretches along the western side of South America?
Answer: The Andes. - Which country contains the ancient Inca site of Machu Picchu?
Answer: Peru.
History and Civic Knowledge
These questions name the document, event, or kind of evidence that counts for the answer.
- What U.S. document begins with the words “We the People”?
Answer: The Constitution. - What is the name for the first ten amendments to the U.S. Constitution?
Answer: The Bill of Rights. - Which amendment includes protections for speech, the press, and religion?
Answer: The First Amendment. - What are the two chambers of the U.S. Congress?
Answer: The Senate and the House of Representatives. - What word means an official change or addition to a constitution?
Answer: An amendment. - What do we call a source created by someone who directly experienced the event being studied?
Answer: A primary source, such as a witness’s diary. - What is a recorded interview about someone’s experiences of the past commonly called?
Answer: An oral history. - How many years are in a century?
Answer: One hundred. - Which ancient civilization built the Colosseum in Rome?
Answer: The Romans. - Who was the first person to step onto the Moon during Apollo 11?
Answer: Neil Armstrong.
Logic and Problem-Solving Bonus
These are deliberately work-it-out questions, with enough information to reach one defensible answer.
- A display has six shelves with nine books on each, and seven books are borrowed; how many remain?
Answer: 47 books. - A recipe uses three-fourths of a cup of oats per batch; how much do two batches need?
Answer: Six-fourths of a cup, or one and one-half cups. - A ticket costs $6 and you buy four with a $30 payment; what is your change?
Answer: $6. - Which is farther, 75 hundredths of a mile or 8 tenths of a mile?
Answer: Eight-tenths, or 0.80 mile. - Every number in a pattern is double the previous one: 3, 6, 12, 24; what comes next?
Answer: 48. - What number has two digits, is a multiple of nine, and has seven in the tens place?
Answer: 72. - A regular hexagon has six equal sides of five inches each; what is its perimeter?
Answer: 30 inches. - A class reads 125 pages in week one and 175 in week two; how many pages is that altogether?
Answer: 300. - Four friends share 36 game tokens equally, then each spends two; how many does each have left?
Answer: Seven tokens. - An angle measuring 130 degrees is split into one angle of 90 degrees and another angle; how large is the other angle?
Answer: 40 degrees.
How I Would Run the Game
Let each team choose one category, then alternate questions so different interests get equal time. Treat the explanation as a conversation after awarding the point, unless you agreed beforehand that the reasoning is part of the answer.
For a shorter game, use five questions from two rounds rather than rushing through all eight topics. Offer a word bank for unfamiliar vocabulary and let children sketch geometry instead of requiring everything to be solved aloud.
References and Answer Notes
The math and word rounds draw on fourth-grade fraction and decimal concepts, geometry, and language skills. The remaining topics are enrichment, not a list of everything a child should know at this age.
The National Park Service’s fossil guide distinguishes body remains from evidence such as tracks, and the National Archives’ Bill of Rights reference explains the document used in the civics round.
Please report a correction with the question number when an answer needs clarification.
Find Another Round
Try third grade trivia for a gentler set, explore geography trivia with map fans, or choose science trivia for your most curious players.
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