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Finished?
Now answer the questions on page 20 of the Applied Science: GCSE Double Award (Hodder) text book

Keywords

HAZARD - anything that could cause harm.

RISK - the likelihood of harm being done.

HAZCARD - an information card for chemical hazards.

RISK ASSESSMENT - A document informing you of hazards, risks and how to deal with tnem.

Fire Types
 


There are four different types, or classes, of fire:

Class A
Class A
 

Class A fires involve solid materials of an organic nature such as wood, paper, cloth, rubber and plastics that do not melt.

       
Class B Class B   Class B fires involves liquids. They include petrol, diesel, thinners, oils, paints, wax, cooking fat and plastics that melt.
       
Class C Class C   Class C fires involve electricity.
       
Class D Class D   Class D fires involve flammable metals such as magnesium, aluminium, titanium, sodium and potassium.

Each type of fire poses their own particular risk. Try and answer these questions, explaining your answer.

1. Would you use water on a type C fire?
2. Would you use water on a chip pan fire?
3. Copy and complete the table:

 
What is burning? Fire Type
A
B
C
D
Wood
Tick
1
1
1
Petrol
2
2
2
2
Wax
3
3
3
3
A Television
4
4
4
4
Manganese
5
5
5
5
Paint Stripper
6
6
6
6

 

 
   

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

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