Tricky 15-question quiz will put your science knowledge to the ultimate test

To coincide with British Science Week (11th – 20th March), we’ve created a tricky 15-question quiz, guaranteed to put your science knowledge to the test.

The challenge features a selection of carefully crafted questions from our 120,000-strong database, covering biology, physics and chemistry.

Our analytics indicate that only about 5% of people will be able to answer ALL of these questions correctly.

Are YOU one of them? Scroll down to take the quiz and check your answers at the bottom.


  1. Which part of the eye determines its colour? Retina, Iris or Pupil?
  2. What is the pH number of a substance that is neither acid nor alkali?
  3. In physics, what is the more common term for the ‘Einstein-Rosen Bridge’ that has fascinating implications for time travel?
  4. What bone is statistically the most commonly broken bone in the human body?
  5. Which element combines with sodium to make common salt?
  6. What was the surname of the German scientist who invented the mercury thermometer in 1714?
  7. Dolly the Sheep, the first cloned mammal, was named after Dolly Parton on account of it being cloned from a mammary cell. Is this… True or False?
  8. What is the most common element found in our universe?
  9. In physics, what is the name given to the type of energy that an object possesses due to its motion?
  10. Which of these is NOT one of the major human blood types? AB, O or OB1?
  11. Ozone is made up of atoms of which gas?
  12. Stephen Hawking once said that “If the universe had existed forever, then everything would be the same…” what? Size, Temperature, Age or Colour?
  13. What kind of animal is a Bombay duck? Mammal, Fish, Insect or Duck?
  14. What gas propels a champagne cork from a bottle?
  15. What name is given to the natural phenomenon by which physical bodies attract each other with a force proportional to their masses?










  1. B – Iris
  2. 7
  3. Wormhole
  4. Collarbone / clavicle
  5. Chlorine
  6. Fahrenheit
  7. A – True
  8. Hydrogen
  9. Kinetic
  10. C – OB1
  11. Oxygen
  12. B – Temperature
  13. Fish
  14. Carbon dioxide (CO2)
  15. Gravity