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🔬 Science & the human body

Test your knowledge with our "Science & the human body" quiz: 92 questions, 10 drawn at random every game, 20 seconds per question. The faster you answer, the more points you score. At the end, send the challenge to your friends: they play the same questions and see the score to beat.

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Sample questions

  1. Which organ pumps blood around the body?
    The liver · The heart · The lungs · The kidneys
    Show the answerThe heart : It beats about 100,000 times a day.
  2. Which planet is called the red planet?
    Jupiter · Mars · Venus · Saturn
    Show the answerMars : Because of the iron oxide in its soil.
  3. Who came up with the theory of relativity?
    Isaac Newton · Albert Einstein · Marie Curie · Galileo
    Show the answerAlbert Einstein : With the famous formula E = mc².
  4. What is the chemical symbol for iron?
    Fe · Fr · Ir · F
    Show the answerFe : From the Latin "ferrum".
  5. How long does Earth take to go around the Sun?
    About 365 days · 24 hours · 30 days · 10 years
    Show the answerAbout 365 days : In 24 hours, it spins once on itself.
  6. Roughly what is the speed of sound in air?
    340 m/s · 34 m/s · 3,400 m/s · 300,000 km/s
    Show the answer340 m/s : About 1,200 km/h. 300,000 km/s is light.
  7. What is the basic unit of every living thing?
    The cell · The atom · The organ · The muscle
    Show the answerThe cell : Our body has tens of trillions of them.
  8. How many degrees are in a right angle?
    90° · 45° · 180° · 360°
    Show the answer90° : A full turn is 360°.
  9. Which unit measures how loud a sound is?
    The decibel · The hertz · The lux · The watt
    Show the answerThe decibel : Long exposure above 85 dB damages hearing.
  10. Which scientist developed the rabies vaccine?
    Louis Pasteur · Alexander Fleming · Marie Curie · Claude Bernard
    Show the answerLouis Pasteur : In 1885.
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