Grains
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50 free Grains trivia questions with answers — trivia quiz, new questions added Oct 2026.
Grains feed more people than any other kind of food. Wheat, rice and maize alone fill most of the world's plates, and barley and rye fill a good share of its glasses. Behind every sack of flour is a long story of wild plants tamed, mills built and recipes handed down. This quiz covers the whole field: the anatomy of a kernel and what whole grain really means, ancient and unusual grains, breads, breakfast cereals, rice dishes and drinks, plus the farmers, scientists and inventions that changed how the world eats. It suits a trivia night, a food or nutrition class, or anyone curious about what is in the pantry. Every question comes with a short explanation, so you leave knowing more than when you started.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which Roman goddess of grain crops shares her name with the largest object in the asteroid belt?
Ceres
Ceres also gave English the word cereal, through her Latin adjective cerealis, meaning of grain.
Q 02Which everyday British measurement still rises in barleycorns, an old English unit equal to a third of an inch?
Shoe sizes
Shoe sizes in the UK climb one barleycorn at a time, a unit medieval law fixed at three dry, round grains of barley to the inch.
Q 03Which breakfast cereal, launched by C. W. Post in 1897, contains neither of the two foods in its name?
Grape-Nuts
Grape-Nuts is baked from wheat and barley flour, and one story says Post believed the baking produced what he called grape sugar.
Q 04Which Japanese dish, defined by its vinegared rice, has a name that literally means sour-tasting?
Sushi
Sushi is defined by its seasoned rice, so slices of raw fish served with no rice at all are a different dish, sashimi.
Q 05Which seed, from a relative of rhubarb and sorrel, is ground into flour for Japanese soba noodles?
Buckwheat
Buckwheat is no wheat at all: the name comes from its seeds, which look like small versions of those of the beech tree.
Q 06Which American snack is named after a 19th-century Presbyterian minister who preached whole-grain bread and temperance?
Graham cracker
Graham cracker recipes grew out of the coarse flour Sylvester Graham championed, and his followers, the Grahamites, formed an early American vegetarian movement.
Q 07Which Andean seed, a relative of spinach, did the United Nations honor with its own international year in 2013?
Quinoa
Quinoa was nicknamed chisiya mama, the mother of all grains, by the Incas, and the UN credited Andean peoples with preserving it.
Q 08Which American spirit must by law be made from at least 51 percent maize and aged in new charred oak?
Bourbon
Bourbon was declared a distinctive product of the United States by Congress in 1964, and it may be made in any state, not only Kentucky.
Q 09Which farm machine reaps, threshes and winnows a grain crop in a single pass across the field?
Combine harvester
Combine harvester is a name for a machine that combines those jobs; Hiram Moore patented the first in the United States in 1835.
Q 10Which maize snack did Chicago inventor Charles Cretors popularize in the 1890s with steam-powered street carts?
Popcorn
Popcorn kernels keep their moisture sealed inside a tough hull until the steam pressure bursts them to 20 to 50 times their original size.
Q 11Which protein network, found in wheat, barley and rye, gives bread dough the stretch that lets it rise?
Gluten
Gluten traps the carbon dioxide bubbles that yeast gives off, holding a loaf's shape and giving the crumb its chew.
Q 12Which starchy part of a wheat kernel is the only one left once the bran and germ are milled away?
Endosperm
Endosperm is the seed's own food store, and in barley it supplies the sugars that brewers ferment into beer.
Q 13True cereals such as wheat, rice and maize all belong to which plant family, known to botanists as Poaceae?
Grasses
Grasses are the most economically important plant family on Earth, and the same family takes in bamboo and garden lawns.
Q 21Which American agronomist won the 1970 Nobel Peace Prize for high-yield dwarf wheat that drove the Green Revolution?
Norman Borlaug
Norman Borlaug is credited with saving over a billion people from starvation, and his first test country went from importing wheat to exporting it by 1963.
Q 22Which genetically engineered grain was developed to fight vitamin A deficiency?
Golden rice
Golden rice gets its color from beta-carotene, which the body turns into vitamin A; Ingo Potrykus and Peter Beyer spent eight years engineering it.
Q 23Which long-grain aromatic rice of India and Pakistan has a name that means fragrant?
Basmati
Basmati grains carry about twelve times more of a natural aroma compound than other rice varieties, which is where the famous scent comes from.
Q 14Which North African staple of tiny steamed semolina granules joined UNESCO's intangible heritage list in 2020?
Couscous
Couscous won its listing through a joint bid by four neighbors: Algeria, Mauritania, Morocco and Tunisia.
Q 15Samuel Johnson's 1755 dictionary joked that which grain was fed to horses in England but to people in Scotland?
Oats
Oats were a mainstay of the Scottish diet as porridge and oatcakes, and stables still feed them to horses that need extra energy.
Q 16Which biblical figure, sold into slavery by his brothers, stored up Egypt's grain before seven years of famine?
Joseph
Joseph won the job by reading Pharaoh's dream, in which seven thin heads of grain swallowed seven plump ones.
Q 17Which word for the dry husks blown from threshed grain during winnowing also means anything seen as worthless?
Chaff
Chaff is so light that farmers traditionally tossed their grain into a breeze and let the wind carry the husks away.
Q 18Which Japanese drink is often called rice wine although it is brewed from starch, much as beer is?
Sake
Sake needs its starch turned into sugar before yeast can make alcohol, and unlike beer it runs both steps at the same time in one tank.
Q 19Maize was domesticated about 9,000 years ago from a wild plant called teosinte in the south of which modern country?
Mexico
Mexico is where farmers turned teosinte into maize, and the crop's genome still draws most of its variation from that wild ancestor.
Q 20Wheat was first cultivated around 9600 BC in which early center of farming?
Fertile Crescent
The Fertile Crescent also gave early farmers lentils, peas and chickpeas, plus the wild ancestors of cows, goats, sheep and pigs.
Q 24Which Italian rice, named after a town in the Po Valley of Piedmont, is the classic choice for risotto?
Arborio
Arborio grains are unusually high in amylopectin starch, which is why they cook up firm, creamy and chewy.
Q 25Which Italian dish is a porridge of boiled cornmeal that was historically made from other grains?
Polenta
Polenta was for centuries tied to the lower classes, for whom a bowl of cornmeal mush was an everyday essential.
Q 26Which dense, dark rye bread from Westphalia is traditionally baked at low heat for many hours?
Pumpernickel
Pumpernickel was a German word for a lout before it named a loaf, and North American versions are lighter and baked far faster.
Q 27Which cold breakfast dish did Swiss physician Maximilian Bircher-Benner devise around 1900 for hospital patients?
Muesli
Muesli started out as Birchermüesli, named for its creator, and the word itself is a Swiss German diminutive meaning mush.
Q 28Which Michigan city, home of Kellogg's and the founding city of Post cereals, is nicknamed Cereal City?
Battle Creek
Battle Creek's cereal trade grew out of its Seventh-day Adventist sanitarium, where W. K. Kellogg worked for his brother before striking out on his own.
Q 29Which US state became a wheat powerhouse after German-Russian Mennonites brought winter wheat there in the 19th century?
Kansas
Kansas owes its wheat fame partly to Bernhard Warkentin, who organized mills there and imported seed from Ukraine to meet demand.
Q 30Jasmine rice, a fragrant long-grain variety known at home as hom mali, is tied above all to which Asian country?
Thailand
Thailand's hom mali gives off a scent likened to pandan leaves, and it fades so fast that connoisseurs seek out each year's new crop.