50 free Hygiene trivia questions with answers — science & nature quiz, new questions added Aug 2026.
42 free Hygiene trivia questions with answers. Hygiene trivia is a lot more entertaining than a health class. These 50 questions cover the inventions and the inventors: soap in ancient Babylon, the Chinese hog-bristle toothbrush, the prisoner who mass-produced toothbrushes in England, the lead toothpaste tube, dental floss, Q-tips, the first deodorant and antiperspirant, roll toilet paper, the safety razor, the flush toilet Queen Elizabeth I tried and the bidet named after a pony. It also covers the medicine: why Ignaz Semmelweis was mocked for telling doctors to wash their hands, John Snow and the Broad Street pump, Joseph Lister's carbolic acid, Florence Nightingale's charts, London's sewers after the Great Stink, fluoridated water, and how many seconds the WHO wants you to scrub. Plus the marketing that changed habits, from Ivory soap that floats to the mouthwash that turned an obscure medical word into a national fear. Every answer is checked against a documented source, so it works for a school health unit, a nurses' quiz night or anyone who likes knowing where everyday things came from.
30 of 50 questions with answers and explanations. Play the quiz
Q 01The word 'hygiene' derives from which Greek goddess, the personification of health?
Hygieia
She was a daughter of Asclepius, the god of medicine; the word entered English in 1676 via French.
Q 02The World Health Organization recommends scrubbing your hands with soap for at least how long?
20 seconds
The CDC says the same, and adds that water temperature makes no difference; the friction is what removes germs.
Q 03Which Hungarian 'saviour of mothers' introduced hand disinfection in Vienna's obstetric clinics in 1847?
Ignaz Semmelweis
He could not explain why it cut deaths from childbed fever, and colleagues mocked him for suggesting doctors' hands were unclean.
Q 04Evidence of soap-like materials being made dates back to around 2800 BC in which ancient civilisation?
Babylon
Modern soap is made by saponification: fats or oils reacting with an alkali such as lye, which frees glycerin as a by-product.
Q 05The first modern-style toothbrush, from Tang-dynasty China, used which animal's bristles?
Hog
Bristles came from hogs in Siberia and northern China because cold weather made them firmer; handles were bamboo or bone.
Q 06Where did William Addis come up with the idea for the first mass-produced toothbrush in 1780?
In prison
Jailed for causing a riot in 1770, he drilled holes in a saved meal bone and threaded in bristles from a guard; his company survived until 1996.
Q 07Which company introduced nylon toothbrush bristles, replacing animal hair, in 1938?
DuPont
The first nylon brush went on sale on February 24, 1938; the first electric toothbrush, the Broxodent, followed from Switzerland in 1954.
Q 08Dr. Washington Sheffield put toothpaste in a collapsible tube in 1880 after his son saw what in Paris?
Painters squeezing paint from tubes
Colgate copied the idea in 1896; the original tubes were made of lead.
Q 09What did dental floss inventor Levi Spear Parmly recommend running between teeth in 1819?
Waxed silk thread
He considered it the most important part of oral care; floss did not become common until much later.
Q 10The first modern commercial deodorant, patented in Philadelphia in 1888, was sold under what name?
Mum
Edna Murphey invented it; the same company later launched Ban Roll-On in 1952 using an applicator inspired by the ballpoint pen.
Q 11The first commercial antiperspirant, launched in 1903, was called what?
Everdry
Jules Montenier's 1941 patent solved the skin-irritation problem of aluminum chloride and went into Stopette spray.
Q 12The English word 'shampoo', dating to 1762, comes from a Hindi word meaning what?
To press or knead
It originally referred to a traditional Indian head massage with hair oil, not a soap.
Q 13The earliest recorded use of paper for toilet hygiene, in the 6th century AD, comes from which country?
China
Scholar-official Yan Zhitui mentioned it around 589; purpose-made toilet paper was mass-produced there by the 14th century.
Q 21In 1854 John Snow traced a London cholera outbreak to a public water pump on which Soho thoroughfare?
Broad Street
The council removed the pump handle; officials put it back once the epidemic passed and rejected his theory.
Q 22Joseph Bazalgette built London's main sewer system in response to which event of 1858?
The Great Stink
The system helped end the city's cholera epidemics and began cleaning the Thames.
Q 23King Camp Gillette's safety razor became dominant after which body began issuing them to soldiers?
The US Army
Unlike earlier safety razors, his used a disposable double-edged blade that never needed stropping or honing.
Q 14Joseph Gayetty's 'Medicated Paper', the first commercial toilet paper in the US, launched in which year?
1857
It came as flat sheets watermarked with his name; rolls took off after a Pennsylvania firm began marketing them in 1890.
Q 15Which company popularised toilet paper on rolls when it began marketing them in 1890?
Scott
Seth Wheeler of Albany had patented the perforated roll and dispenser in 1883.
Q 16Listerine, developed in St. Louis in 1879, is named after which pioneer of antiseptic surgery?
Joseph Lister
Joseph Lawrence's formula was first a surgical antiseptic and even a floor cleaner; it became the first over-the-counter mouthwash in 1914.
Q 17Listerine sales exploded in the 1920s when it was sold as the cure for which then-obscure term?
Halitosis
Contrary to legend the brand did not coin the word, which comes from the Latin halitus, 'breath'; the ads featured lonely singles nobody would marry.
Q 18Global Handwashing Day is marked every year on which date?
15 October
It was first celebrated in 2008 to promote washing with soap at critical moments such as before eating and after using the toilet.
Q 19The CDC recommends alcohol-based hand sanitizer containing at least what percentage of alcohol?
60%
Formulas of 60 to 95 percent are most effective; they kill most microbes but not spores, and they are flammable.
Q 20Which chemical did Joseph Lister introduce at the Glasgow Royal Infirmary in 1865 to sterilise wounds and tools?
Carbolic acid
Inspired by Pasteur's work on microbes, he showed in 1865 that carbolic dressings sharply cut post-surgical infection.
Q 24Leo Gerstenzang invented the mass-produced Q-tip in 1923 after watching his wife do what?
Put cotton on toothpicks to clean a baby's ears
He first called them Baby Gays, then Q-tips Baby Gays; the Q stood for quality.
Q 25The word 'bidet' is French for what?
Pony
You straddle it like a horse; the fixture seems to have been invented by French furniture makers in the late 17th century.
Q 26Sir John Harington described a forerunner of the flush toilet in 1596 and installed one for which monarch?
Elizabeth I
She was his godmother; his book about it was punningly titled The Metamorphosis of Ajax ('a jakes' being a privy).
Q 27Alexander Cumming's 1775 patent for what device laid the foundation of the modern flush toilet?
The S-trap
Thomas Crapper later held nine patents including the floating ballcock, but none for the flush toilet itself.
Q 28Thomas Crapper held nine patents. How many were for the flush toilet itself?
None
Three covered water-closet improvements such as the ballcock, and he improved the S-bend into the U-bend in 1880.
Q 29Under what brand was Earle Haas's tube-within-a-tube applicator tampon sold from 1933?
Tampax
Gertrude Tenderich bought the patent and hired nurses to give public lectures on the product.
Q 30Ivory soap's famous first slogan, introduced in 1891, was what?
It Floats!
The purity slogan came a few years later, based on an independent lab analysis commissioned by Harley Procter.