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A Quiz about Water

Water is one thing we all share in common. We use it for cooking, drinking, washing several times a day, and we wouldn’t last long without it. But how much do you actually know about water? Take this quiz and find out!

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All data correct per Wikipedia.

Cover image: public domain

  • The chemical formula for water is…

    • H2O
    • HO2
    • H2O2
  • This means that a water molecule contains…

    • 1 hydrogen atom and 2 oxygen atoms
    • 2 hydrogen atoms and 1 oxygen atom
    • 2 helium atoms and 1 oxygen atom
  • Water is generally regarded as…

    • Opaque
    • Translucent
    • Transparent
  • The human body contains how much water?

    • 49% to 54%
    • 55% to 78%
    • 79% to 88%
  • In traditional Chinese philosophy, which of the following is one of the five elements?

    • earth
    • fire
    • wood
    • metal
    • water
    • all of the above
  • Water covers how much of the earth’s surface?

    • 71%
    • 81%
    • 86%
  • What percentage of our surface water is freshwater (non-salty)?

    • 40%
    • 10%
    • 2.5%
  • How much of that freshwater is in rivers and lakes?

    • 89%
    • 4.5%
    • 0.3%
  • In which state is water invisible?

    • Solid
    • Liquid
    • Gas
  • If a planet is sufficiently massive, the water on it may be solid even at high temperatures, because of the high pressure caused by gravity

    • This is true
    • No way!
  • Approximately how many people lack access to safe drinking water?

    • Ten million people
    • One hundred million people
    • One billion people
  • Ancient Egyptian civilisation depended on the river Nile; Mesopotamia depended on the Tigris and Euphrates. The ancient Harappan Civilization on the Indian subcontinent developed around which river?

    • The Ganges
    • The Indus
    • The Brahmaputra
  • One litre of seawater contains approximately what weight of dissolved salts?

    • 35 grams (1.2 oz)
    • 25 grams (0.9 oz)
    • 15 grams (0.5 oz)
  • Which word does NOT specifically mean connected with the sea?

    • Pelagic
    • Maritime
    • Marine
    • Nautical
    • Hydrographic
  • Which of the following is not water?

    • snow
    • glaciers
    • icebergs
    • atmospheric humidity
    • clouds
    • fog
    • dew
    • lava

What do you think?

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