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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