I believe all the insulators would be glass, wood, plastic, and yarn. 
But I’m not entirely sure if mechanical pencil lead is an insulator or conductor. 
Hope this helps.
        
             
        
        
        
You<span> should </span>test<span> FC and PH as soon as </span>you<span> take the sample</span>
        
             
        
        
        
Answer:
Hey,
All the answers should be blue.
<em>Edg 2020/2021</em>