Starter quiz

  • Which of the following will you find in the Earth's atmosphere?
    • aluminium
    • gold
    • nitrogen  ✓
    • zinc
  • What percentage of the Earth's atmosphere is carbon dioxide?
    • less than 1%  ✓
    • 1%
    • more than 1%
  • Which word is used to describe a substance that contains two or more different substances which are not chemically combined?
    • 'mixture' ✓
  • Which word is used to describe the mass per unit volume?
    • displacement
    • density  ✓
    • velocity
    • temperature
  • The atmosphere is ...
    • the space that exists between Earth and the Sun.
    • all the living organisms within an ecosystem.
    • a layer of gas that surrounds a planet.  ✓
  • Which gas in our atmosphere is essential for life on Earth?
    • 'oxygen' ✓
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