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16 Cards in this Set
- Front
- Back
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the 3 things we need for fire can be shown in a ______ _______.
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fire triangle.
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those 3 things are .....
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fuel oxygen and heat.
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fuel needs plenty of ______ to burn. It produces ______ ______ and ________.
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oxygen, carbon dioxide , water.
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The burning reaction is called c_______ (or o_______).
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combustion, oxidation.
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Complete combustion produces _______ _______ and ________
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carbon dioxide and water.
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Incomplete combustion produces toxic carbon _______ and possibly _______.
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monoxide, soot.
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How can you test for water?
What colour is this to start? What colour does it change to? |
With a compound called cobalt chloride..
Blue Pink when in contact with water |
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The test for carbon dioxide is?
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Limewater
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What happens?
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Limewater is colourless, it turns milky when CO2 pass through it.
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What 2 extra products are produced when there is incomplete combustion of fuel?
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Carbon monoxide and soot.
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What gas has the highest percentage in air?
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Nitrogen
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Name 3 fossil fuels
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coal gas oil
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What gas is given off to produce acis rain?
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sulphur dioxide
Also nitrogen oxide and carbon dioxide |
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What are the effects of acid rain?
(3) |
Damages trees, poisons fish in lakes, and attacks buildings and metal structures.
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What is global warming?
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The heating up of the earth.
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Explain how global warming works?
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Carbon dioxide the green house gas, traps heat that would otherwise escape into space. The natural quantity of CO2 is rising disturbing the natural quantity occuring before fossil fuels were burnt.
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