Sandstone
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40 free Sandstone trivia questions with answers — science & nature quiz, new questions added Oct 2026.
Sandstone is one of the most familiar rocks on Earth, and one of the most photographed. It is simply sand that was buried, squeezed and glued together, yet it forms some of the planet's best-known cliffs, canyons, pillars and sea stacks, and people have been carving and building with it for thousands of years. These sandstone fun facts come as a quiz. The questions cover the science, such as what the rock is made of, where its colours come from and what happens to it deep underground, alongside the famous places it forms on several continents and the monuments, temples and houses cut from it. There are a few surprises from film sets, climbing and space exploration too. It suits students revising rocks and minerals, teachers looking for a quick classroom round, travellers who like to know what they are looking at, and anyone who enjoys a good fact about the ground beneath their feet. Every answer comes with a short explanation.
30 of 40 questions with answers and explanations. Play the quiz
Q 01Which famous American residence was built of porous Aquia Creek sandstone and sealed with a lime-based coating?
White House
White House walls were whitewashed with lime, rice glue, casein and lead to seal the stone, and that coating gave the building both its colour and its name.
Q 02Which ancient city in Jordan, nicknamed the Rose City, was carved straight into sandstone cliffs?
Petra
Petra is entered through the Siq, a natural split in the rock that narrows in places to just three or four metres wide.
Q 03California's tilted sandstone Vasquez Rocks earned the nickname Kirk's Rock from appearances in which TV series?
Star Trek
Star Trek used the slanted outcrop as an alien world in four episodes of the original series, then came back to it for later films and spin-offs.
Q 04Which giant sandstone monolith in Australia's Northern Territory glows red at dawn and sunset?
Uluru
Uluru stands 348 metres high, yet most of its bulk lies hidden underground.
Q 05Which sandstone block used to crown Scottish kings was taken from Westminster Abbey by four students in 1950?
Stone of Scone
Stone of Scone turned up the following April, left on the altar of Arbroath Abbey by the people who had been hiding it.
Q 06Which vast Southeast Asian temple was built from millions of sandstone blocks quarried at Mount Kulen?
Angkor Wat
Angkor Wat took five to ten million blocks, each weighing up to 1.5 tons, brought from a quarry about 40 km to the northeast.
Q 07Under great heat and pressure, sandstone recrystallises into which much harder metamorphic rock?
Quartzite
Quartzite forms when the grains fuse into an interlocking mosaic of crystals, which erases almost all the layering the original sandstone showed.
Q 08The Nubian Sandstone Aquifer System, the world's largest known store of fossil water, lies beneath which desert?
Sahara
Sahara sands hide an aquifer shared by Egypt, Libya, Sudan and Chad, and Libya's Great Man-Made River project pumps its ancient water out for farms and cities.
Q 09Which landscape of towering sandstone buttes on the Arizona–Utah line became the backdrop for John Ford's Westerns?
Monument Valley
Monument Valley's buttes rise up to 1,000 feet above the desert floor on Navajo Nation land, and its Navajo name means valley of the rocks.
Q 10Which soft sandstone, quarried heavily at Portland, Connecticut, gave its name to classic New York row houses?
Brownstone
Brownstone was popular because it is unusually easy to quarry and carve, which is also why so many of those house fronts weather and flake.
Q 11Table Mountain, a block of hard sandstone often draped in cloud, overlooks which South African city?
Cape Town
Cape Town locals call the cloud that spills over the flat summit the tablecloth; it forms when a south-easterly wind is pushed up the slopes into colder air.
Q 12Angel Falls, often called the world's tallest waterfall, drops off a sandstone table mountain in which country?
Venezuela
Venezuela's flat-topped tepuis are the remains of one vast sandstone plateau, and the falls are named after pilot Jimmie Angel, whose plane got stuck on the summit in 1937.
Q 13Which Greek World Heritage Site has Orthodox monasteries perched on giant pillars of sandstone and conglomerate?
Meteora
Q 21Geologists sort rocks into three great families; sandstone, built from cemented grains, belongs to which one?
Sedimentary
Sedimentary sandstone is porous enough to soak up and store huge volumes of fluid, which makes it one of the most valuable rocks for groundwater, oil and gas.
Q 22The sweeping slanted layers inside Navajo Sandstone cliffs are the frozen remains of which ancient landscape feature?
Desert dunes
Desert dunes piled up here for perhaps ten million years in the Jurassic, when a sea of sand covered some 150,000 square miles of western North America.
Q 23Which narrow gorge on Navajo land near Page, Arizona, was carved through sandstone mainly by flash floods?
Antelope Canyon
Meteora once held twenty-four monasteries on its rock towers, most of them founded from the 14th century onward; only a handful are still in use.
Q 14A sandstone pillar in which Chinese forest park was renamed Avatar Hallelujah Mountain in honour of the 2009 film?
Zhangjiajie
Zhangjiajie owes its forest of stone pillars largely to ice expanding in cracks each winter and to the plants that root on the rock.
Q 15The Three Sisters, sandstone towers above the Jamison Valley near Katoomba, stand in which Australian range?
Blue Mountains
Blue Mountains scenery is named for the bluish haze over the range, thought to come from oils given off by its vast eucalyptus forests.
Q 16Which Egyptian temples, cut into a sandstone cliff for Ramesses II, were moved uphill to escape a rising reservoir?
Abu Simbel
Abu Simbel was sawn into blocks and rebuilt on higher ground in the 1960s, with the cuts planned at about 6 mm wide so the joins would hardly show.
Q 17The pale Coconino Sandstone, known for fossil animal tracks, forms a sheer cliff band high in which American landmark?
Grand Canyon
Grand Canyon walls expose it as a conspicuous sheer cliff near the top, and the same layer runs south and east to form part of Arizona's Mogollon Rim.
Q 18Which American open-air concert venue is naturally formed by two giant tilted sandstone monoliths?
Red Rocks
Red Rocks, outside Morrison, Colorado, seats 9,525 people between Ship Rock and Creation Rock, slabs lifted and tilted by the same upheaval that raised the Garden of the Gods.
Q 19Hopewell Rocks, flowerpot-shaped sandstone and conglomerate stacks, are swamped twice daily by tides in which inlet?
Bay of Fundy
Bay of Fundy tides have such an extreme range that the bases of the stacks vanish under water, yet visitors can walk among them at low tide.
Q 20The crimson, orange and pink streaks of the Navajo Sandstone come from varying amounts of which compound?
Iron oxide
Iron oxide, the stuff of rust, fills the pores between the grains, and groundwater has been altering the mix for some 190 million years.
Antelope Canyon still floods: monsoon rain gathers in the basin above, then picks up speed and sand as it rushes through the narrow passages.
Q 24Which Mughal fortress in Delhi, where India's prime minister raises the flag each Independence Day, has sandstone walls?
Red Fort
Red Fort takes its name from the colour of those walls, and Jawaharlal Nehru first hoisted the national flag over its Lahori Gate on 15 August 1947.
Q 25Which Indian city's Hawa Mahal, a honeycomb palace front of red and pink sandstone, has 953 small windows?
Jaipur
Jaipur's royal ladies used the latticed windows to watch street life and festivals below without being seen themselves.
Q 26The Lion Monument, a dying lion carved into an old sandstone quarry to honour fallen Swiss Guards, is in which city?
Lucerne
Lucerne's lion honours the Swiss Guards killed in 1792 when revolutionaries stormed the Tuileries Palace in Paris, and it was designed by the Danish sculptor Bertel Thorvaldsen.
Q 27Which French forest, strewn with sandstone boulders, is the biggest and most developed bouldering area in the world?
Fontainebleau
Fontainebleau gave the sport its Font grading scale, now used at climbing areas around the world, and Parisian climbers knew most of its popular sectors before the Second World War.
Q 28Which 137-metre red sandstone sea stack in Scotland's Orkney Islands was first climbed in 1966?
Old Man of Hoy
Old Man of Hoy is probably only a few hundred years old, cut from a cliff some time after 1750, and it may soon collapse into the sea.
Q 29Cliff Palace, built by Ancestral Puebloans from sandstone blocks and adobe mortar, is the showpiece of which park?
Mesa Verde
Mesa Verde protects about 600 cliff dwellings tucked into rock alcoves, and Cliff Palace is the largest cliff dwelling in North America.
Q 30Utah's Moqui marbles, stone balls that weather out of sandstone, resemble Martian spherules nicknamed after which fruit?
Blueberries
Blueberries was the Opportunity rover team's name for the tiny Martian spheres, while the Utah versions range from the size of peas to the size of baseballs.