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: [[Metal|Metals]] make good '''electrical conductors'''.
: [[Plastic (Material)|Plastic]], [[rubber]] and the [[air]] make bad '''electrical conductors'''.
{| class="wikitable"
|-
|[[File:BrickWall.png|center|200px]]
|[[File:Fabric.png|center|200px]]
|[[File:CupGlass.png|center|200px]]
|[[File:MetalSword.png|center|200px]]
|-
|[[Brick]] is a bad '''electrical conductor'''.
|[[Fabric]] is a bad '''electrical conductor'''.
|[[Glass]] is a bad '''electrical conductor'''.
|[[Metal]] is a good '''electrical conductor'''.
|-
|[[File:CupPlastic.png|center|200px]]
|[[File:Mountain.png|center|200px]]
|[[File:TyreRubber.png|center|200px]]
|[[File:Sea.png|center|200px]]
|-
|[[Plastic (Material)|Plastic]] is a bad '''electrical conductor'''.
|[[Rock (Material)|Rock]] is a bad '''electrical conductor'''.
|[[Rubber]] is a bad '''electrical conductor'''.
|[[Brine|Salty water]] is a good '''electrical conductor'''.
|}