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Science & Nature

50 randomly selected Science & Nature questions for quizmasters.

New random selection made weekly.  Next update: Monday 12th May 2025

(Please note: Questions are taken from our database of previous quizzes. Some questions and answers may be outdated.)


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1.According to the SI standard, how many bytes are there in a terabyte?
 
1 trillion or 1012
2.Three 1.5 volt 500 mAh batteries are connected in series. What is their combined output voltage (v) and electric charge (mAh)?
 
4.5 v 500 mAh (If connected in parallel they would output 1.5 v 1500 mAh)
3.At standard pressure, caesium, rubidium, Francium and Gallium become liquid at or just above 25°C, but at 20°C, what are the only two liquid elements?
 
Bromine & Mercury
4.What colour head does a male Mallard have?
 
Green
5.What metal element is the main constituent of pewter?
 
Tin (85–99%)
6.What is the most abundant metal in the Earth's crust?
 
Aluminium / Aluminum
7.4.3 light years from the Sun, what is the name of the nearest star system to Earth's Solar System?
 
Alpha Centauri (Proxima Centauri is the nearest star)
8.The solid form of what chemical compound is known as dry ice?
 
Carbon Dioxide / CO2
9.What 'A' is the cause of 60-70% of cases of dementia?
 
Alzheimer's
10.In meteorology, an okta is a unit of measurement used to describe what?
 
Cloud cover (0 = completely clear, 8 = completely cloudy)
11.What 'F' describes the bony projection on the lower leg of a horse?
 
Fetlock
12.What is the common name for the chemical compound NH3?
 
Ammonia / Azane
13.How many objects in our solar system are larger than the Earth?
 
5 (Sun, Jupiter, Saturn, Uranus, Neptune)
14.What 'P' describes rocks composed solely or primarily of volcanic materials?
 
Pyroclastic
15.Myology is the scientific study of which part of the anatomy?
 
Muscles
16.Who is credited with the invention of the modern hovercraft in the 1950s?
 
Christopher Cockerell

17.What is the common name for a periorbital hematoma?
 
Black eye
18.Named after the scientist who published them between 1609 and 1619, three scientific laws describing the motion of planets around the Sun are known as _______ laws of planetary motion. (fill in the blank.)
 
Kepler's (Johannes Kepler)
19.What is the common name for the chemical compound NaCl?
 
Salt (sodium chloride)
20.Also used to describe part of the human body, what 'C' is the waxy part of a leaf?
 
Cuticle
21.What 'O' describes a process by which molecules of a solvent pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane?
 
Osmosis
22.To what genus of flowering plants do these belong?
 
Hibiscus
23.What would you find in the sockets of your alveolar ridge?
 
Teeth
24.At home, how might ethyl mercaptan (ethanethiol) save your life?
 
Its smell (It is intentionally added to butane and propane to impart an easily noticed smell to these normally odourless fuels that pose the threat of fire, explosion, and asphyxiation.)
25.What colour are mistletoe berries?
 
White
26.A wide-spread species found across Europe and Asia with introduced populations in New Zealand, Australia and on the Hawaiian Islands; what 'S' describes this bird?
 
Skylark (Eurasian skylark Alauda arvensis)
27.Bauxite is the world's main source of what metal?
 
Aluminium / Aluminum
28.Which planet in our Solar System has two moons, Phobos and Deimos?
 
Mars
29.What name is given to this engine component?
 
Camshaft
30.Named after mathematician and physicist Carl Friedrich Gauss, what can be measured in gauss?
 
Magnetic field (aka "magnetic flux density" or "magnetic induction")
31.The world's first synthetic plastic, polyoxybenzylmethylene-glycolanhydride, was patented in 1909 under what name?
 
Bakelite
32.Deglutition is the scientific term for what common bodily function?
 
Swallowing

33.What do you suffer from if you have halitosis?
 
Bad breath
34.What 5-letter word can be spelt using the chemical symbols for Fluorine, Gold and Sodium?
 
Fauna
35.How many pounds are there in a long (US) or imperial (UK) hundredweight?
 
112 (a short hundredweight or cental is 100 pounds)
36.What 'P' describes an acute, viral, infectious disease sometimes called infantile paralysis?
 
Poliomyelitis / Polio (Poliovirus)
37.What is lava called before it extrudes onto the surface?
 
Magma
38.What breed of dog is this?
 
Shih Tzu (aka the Chrysanthemum Dog or Chinese Lion Dog)
39.In medicine, what do the initials ENT stand for?
 
Ear, Nose & Throat
40.Launched in March 2009, what is the name of the NASA space observatory currently searching for Earth-like planets orbiting other stars?
 
Kepler
41.What 7-letter word can be spelt using the chemical symbols for lanthanum, sulphur, silver, and sodium?
 
Lasagna
42.What measurement is equal to 6,076 feet?
 
Nautical Mile
43.What name was shared by the two NASA Mars orbiters, and their respective landers that became the first to successfully return data from the surface of Mars in 1976?
 
Viking (Viking 1 and 2)
44.What 8-letter word can be spelt using the chemical symbols for lithium, iron, sulphur, protactinium, and nitrogen?
 
Lifespan
45.What metal element is combined with a halogen to produce a light-sensitive chemical compound, most commonly used in photographic film and paper?
 
Silver
46.The five basic tastes that can be detected by humans are generally regarded as sweet, sour, salty, bitter, and what?
 
Savoury / Umami (Japanese: うま味 "pleasant savoury taste")
47.After elephants, what is the next heaviest land animal in the world?
 
Rhinoceros (White rhinoceros)
48.What does a dipsomaniac have an uncontrollable craving for?
 
Alcohol
49.Native to Australia, what type of animal is a taipan?
 
Snake
50.What Scottish engineer developed the concept of horsepower in the late 18th century, comparing the output of steam engines with the power of draft horses?
 
James Watt


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