WONDER #2065: How Does a Fire Extinguisher Work?

Question 1 of 3

Which of the following is NOT a necessary element of fire?

  1. heat
  2. oxygen
  3. fuel
  4. match

Question 2 of 3

When baking soda decomposes, it releases which gas?

  1. nitrogen
  2. hydrogen
  3. oxygen
  4. carbon dioxide

Question 3 of 3

Which of the following would you NOT want to use to put out an electrical fire?

  1. water
  2. carbon dioxide
  3. baking soda
  4. potassium bicarbonate

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