SAFETY
      
      
        The
        investigations described here have been developed by teachers with experience
        in schools and colleges worldwide.
      
      
         
          The techniques, equipment and chemicals
          used are, as far as possible, simple and present few hazards.
        
      
      
         
          Where hazards
          exist they are minimal, are clearly identified and the precautions for safe
          working are indicated.
        
      
      
         Students and teachers should:
      
      
        - 
          follow good laboratory practices.
        
 
        - complete their own risk assessments.
 
       
      
         
          Students should work under adequate supervision.
        
      
      
        We are happy to provide
        assistance and advice about any aspect of these practicals,
        (see Contact Us on the toolbar).
       
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