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Firework colours

Metal salts give flames their colours — that is how fireworks are coloured.

Topic: First chemistry (grades 7–8)Grade: 8Free

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Runs in the browser on phones, tablets and computers. No sign-up needed. For teachers: assign any experiment to a class, see results and calculations.

What you do

  1. Open “Tests” on tube 1 and choose “Flame test”: lithium burns red.
  2. Clean the wire, then test tubes 2 and 3: sodium is yellow-orange, copper is blue-green.

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