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Burning Tobacco Makes Smoke

When tobacco burns, it does not turn into one simple gas. It makes smoke that is a mixture of many different chemical substances, and some of them are harmful.

In the picture

  1. The glowing tip of the cigarette: where the tobacco burns
  2. The smoke inside the glass box: a mixture of many different substances
  3. Coloured droplets and dots: some of the separate substances in the smoke

Examples

  • The smell of smoke that stays on clothes and hair after standing near someone who smokes.
  • A campfire that leaves black soot and ash behind after the wood has burned.

Quiz: Burning Tobacco Makes Smoke (Age 11)

  1. What does burning tobacco produce?

    • Smoke, not one pure gas
    • Only one pure gas
    • Nothing but water vapor
  2. What is tobacco smoke a mixture of?

    • Only one chemical substance
    • Only tiny pieces of tobacco leaf
    • Many different chemical substances
  3. What does the card say about the substances in tobacco smoke?

    • Some of them are harmful
    • All of them are safe
    • They are all the same substance

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.

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Chemistry, Age 11