Temperate Deciduous Forest
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40 free Temperate Deciduous Forest trivia questions with answers — science & nature quiz, new questions added Oct 2026.
The temperate deciduous forest is the biome many of us grew up beside: woods that are green in summer, bright in autumn and bare under snow. It grows where summers are warm, winters are cold and rain falls all year, and nearly everything living in it has a way of getting through the lean months, from sleeping and storing food to leaving altogether. This quiz turns fun facts about the temperate deciduous forest into questions. It covers where the biome is found and which biomes it borders, the layers and soil of the woods, the trees and wildflowers, and the mammals, birds and insects that live among them on more than one continent. A few questions follow the timber out of the forest, into ships, medicine, drink and legend. It suits students working on a biome project, teachers who want a ready-made review, and anyone who enjoys a walk under the trees. Every answer comes with a short explanation, so each question leaves you with a fact worth repeating.
30 of 40 questions with answers and explanations. Play the quiz
Q 01Which monkey, the northernmost non-human primate on Earth, bathes in hot springs through snowy forest winters?
Japanese macaque
Japanese macaque troops live in the cool deciduous forests of central and northern Japan, where snow can lie for months. They have also been seen rolling snowballs for fun.
Q 02Around 6,000 trees, nine-tenths of them oak, were felled to build which flagship of Admiral Nelson at Trafalgar?
HMS Victory
HMS Victory needed 150 men to assemble her, and the rest of her timber was elm, pine and fir. She has sat in dry dock at Portsmouth since 1922 and remains a commissioned warship.
Q 03Which everyday painkiller grew out of salicin, a bitter compound found in the bark of willow trees?
Aspirin
Aspirin is a lab-made relative of salicin, and willow remedies appear on clay tablets from ancient Sumer. In the 1700s an English clergyman spent five years testing powdered bark on some fifty fever patients.
Q 04Which Christmas evergreen is really a parasite that taps water and nutrients from the branches of trees?
Mistletoe
Mistletoe sinks a root-like organ called a haustorium into its host's bark. It still makes some food of its own by photosynthesis, so botanists call it a hemiparasite.
Q 05Which spirit must, by law, be stored in a brand-new container of charred oak?
Bourbon
Bourbon draws its colour and much of its flavour from caramelised sugars in the charred wood. Coopers favour the white oak of North America's eastern forests because its wood resists leaking.
Q 06In Norse mythology, Yggdrasil, the immense sacred tree at the centre of the cosmos, is which kind of tree?
Ash
Ash is what both the Poetic Edda and the Prose Edda call Yggdrasil, whose three roots stretch away to far-off wells and springs. The gods are said to assemble beneath it every day.
Q 07Which animal of eastern North American forests can pass months in a winter den without eating or drinking?
Black bear
Black bear heart rates fall from 40 to 50 beats a minute to just 8 in the den. Cubs are usually born there in late January or early February.
Q 08Which sleepy woodland rodent, a guest at the Mad Hatter's tea party, can hibernate for six months or more?
Dormouse
Dormouse fat was believed by the Elizabethans to bring on sleep, because the animal fattens up before its long winter. It wakes now and then to nibble food stored nearby.
Q 09Which pale green insect of North American woods has no working mouth as an adult and lives about a week?
Luna moth
Luna moth adults have only vestigial mouthparts and no digestive system. All the eating is done by the caterpillars, which feed on the leaves of broadleaf trees.
Q 10Which fan-leaved tree from China, widely called a living fossil, had specimens survive the Hiroshima atomic bomb?
Ginkgo
Ginkgo is the last survivor of an order of plants that first appeared over 290 million years ago. Its leaves turn bright yellow in autumn and sometimes all fall within a day.
Q 11In a so-called mast year, the oaks across a wide area flood the forest floor with a bumper crop of what?
Acorns
Acorns fall by the thousand in a mast year, far more than seed-eating animals can finish, so some survive to sprout. Lean years in between keep those animals' numbers low.
Q 12Which colder biome of conifers lies directly to the north of the temperate deciduous forest belt?
Taiga
Taiga, also called boreal forest, has its largest areas in Russia and Canada. Its soil is young and poor in nutrients, without the deep, enriched layer that builds up under broadleaf trees.
Q 13Besides eastern North America and Europe, which region holds a great belt of temperate deciduous forest?
East Asia
Q 21Which wild animal of Asian and European forests is the only canid known to hibernate?
Raccoon dog
Raccoon dog metabolism falls by a quarter during the winter sleep. Unusually for a member of the dog family, the animal can also climb trees.
Q 22In Felix Salten's novel, Bambi is which European woodland species, swapped by Disney for an American cousin?
Roe deer
Roe deer are native to Europe, so Disney's artists redrew Bambi as a white-tailed deer, an animal that audiences across the United States would recognise.
Q 23Which nocturnal mammals of North American forests were found in 2019 to glow pink under ultraviolet light?
Flying squirrels
East Asia completes the trio of big northern regions. Small pockets also grow in South America, where southern beeches of the genus Nothofagus take the place of oaks.
Q 14Dogwood and holly, small trees that spend their lives shaded by taller neighbours, belong to which forest layer?
Understory
Understory plants receive only a small share of the sunlight, so they are built to tolerate shade. The air around them is also more humid than it is up in the treetops.
Q 15Which dark, spongy material, left when fallen leaves fully rot, helps make deciduous forest soil so fertile?
Humus
Humus gets its deep brown colour from the organic carbon packed into it. That dark colour even helps to warm cold soil in spring.
Q 16Through which process can one large oak release about 40,000 gallons of water into the air in a single year?
Transpiration
Transpiration is water vapour escaping through tiny leaf pores called stomata. By the same route, an acre of corn gives off 3,000 to 4,000 gallons every day.
Q 17Which nocturnal digger of European woodlands lives in clans in sprawling tunnel systems known as setts?
Badger
Badger clans come out at dusk and go home at daybreak. In cold regions the whole clan sleeps in one chamber dug below the frost line, possibly to share body heat.
Q 18Which songbird of eastern North American forests can sing two notes at once, giving its song a flute-like sound?
Wood thrush
Wood thrush males breed in deciduous and mixed forests, then leave for southern Mexico and beyond for the winter. Forest loss at both ends of the journey threatens the species.
Q 19Which US president earned the nickname Old Hickory, after a famously tough hardwood of America's eastern forests?
Andrew Jackson
Andrew Jackson won the name by refusing to disband his troops and leading them on a hard march home to Nashville. The shock-resistant wood is still used for tool handles and drumsticks.
Q 20Which early-blooming plant of eastern North American wetland woods makes its own heat and melts through the snow?
Skunk cabbage
Skunk cabbage can run 15 to 35 °C warmer than the air around it, thawing a ring in the ice. The warmth may also help carry its smell to the first insects of the year.
Flying squirrels gave up the secret by chance, and ordinary tree squirrels showed no glow at all. They only glide, yet trips of up to 90 metres between trees have been recorded.
Q 24Which vine, once sold to American farmers to stop soil erosion, now smothers trees across the US South?
Kudzu
Kudzu was only a garden plant until the Dust Bowl years of the 1930s. It climbs so quickly and so densely that it kills trees by blocking most of their sunlight.
Q 25Which medicinal root of eastern North American forests has been traded to China for more than 300 years?
Ginseng
Ginseng joined fur as the oldest trade between North America and China after a French Jesuit found the plant near Montreal in 1716. Most wild exports now come from southern Appalachian states.
Q 26Which red, white-spotted toadstool of fairy tales grows in partnership with the roots of birch trees?
Fly agaric
Fly agaric cannot be farmed, because it lives only in partnership with tree roots. It turns up in Disney's Fantasia and in the Super Mario video games.
Q 27Great Smoky Mountains National Park, the most visited national park in the US, lies partly in which state?
Tennessee
Tennessee shares the park, whose slopes hold one of the largest blocks of old-growth temperate deciduous forest in North America. A state line runs through its centre.
Q 28Which king proclaimed the New Forest of southern England a royal hunting ground in about 1079?
William the Conqueror
William the Conqueror kept it for his own hunting, and harsh forest laws protected the king's game. Two of his sons later died there, among them King William Rufus in 1100.
Q 29Which reptile of eastern North American woods has a hinged shell that it can shut completely?
Box turtle
Box turtle shells close along a flexible hinge on the underside, sealing the soft body in bone. Some individuals have stayed on the same patch of ground for more than 32 years.
Q 30Vernal pools, the short-lived spring ponds of deciduous woods, are safe frog nurseries because they usually lack what?
Fish
Fish cannot last in a pond that vanishes for part of the year, so tadpoles and young salamanders grow up without them. In New England, wood frogs are a telltale sign of such a pool.