A conductor is a substance in which electrons can move freely from one atom to another.

An insulator is a substance in which electrons cannot move from one atom to another.

Common Conductors and Insulators

Good Conductors Fair Conductors Good Insulators (Non-conductors)
Silver Carbon Oil
Copper Human body Fur
Gold Moist human skin Silk
Aluminum Acid solutions Wool
Magnesium Salt water Rubber
Tungsten Earth Porcelain, glass
Nickel Water vapour (in air) Plastic
Mercury Wood
Platinum Paper
iron Wax
ebonite

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Jeff
Jeff
7 years ago

This really helped me in my homework! THANKS!

Maria
Maria
Reply to  Jeff
5 years ago

hey, thank you

Seth
Seth
Reply to  Jeff
5 years ago

I know dude

Gaha
Gaha
2 years ago

Is Wool is a conductive material? which means it readily gives away its electrons.

Caitlin
Caitlin
7 years ago

THANK YOU, THIS HELPED ME SOOOOO MUCH!

Anonymous
Anonymous
7 years ago

thanks..helped me alot in science home work

Anna
Anna
6 years ago

I need more info on the insulators and conductors…help?

Jake
Jake
7 years ago

So helpful

Romila
Romila
Reply to  Jake
7 years ago

helped me a lot too

ML Akash
ML Akash
1 year ago

Please tell me an insulator example.

Myles
Myles
Reply to  ML Akash
3 months ago

Diamond

Justin B.
Justin B.
2 years ago

is yarn a conductor or an insulator

TT Agnes
TT Agnes
Reply to  Justin B.
8 months ago

INSULATOR

Myles
Myles
Reply to  TT Agnes
3 months ago

is fabric cork and car keys an insulator or a conductor?

Mirrl
Mirrl
6 years ago

Hey this is great

Cory K.
Cory K.
7 years ago

awesome !!!!!!!

Christopher
Christopher
2 years ago

I need help with this question

Jaliey
Jaliey
3 years ago

is cotton a conductor or insulator? (Cotton Balls).

JW
JW
Reply to  Jaliey
2 years ago

insulator 🙂

Bob
Bob
4 years ago

Thank you….༼ つ ◕_◕ ༽つ

Sophia
Sophia
5 years ago

This was helpful, but how about listing not good insulators?

Anonymous
Anonymous
Reply to  Sophia
5 years ago

almost the same as a conductor

Masonic
Masonic
7 years ago

So helped me with my test, got 100%

Mayuri
Mayuri
6 months ago

Nice thank you

A J
A J
1 year ago

Rubber is really effective because it can cancel the electrons flow

Romio
Romio
Reply to  A J
6 months ago

We know bro
Yes or no

Ka Miya
Ka Miya
2 years ago

Is a hat a conductor 🤔

JW
JW
Reply to  Ka Miya
2 years ago

Depends on the material, but it is most often an insulator, not a conductor

S. Wloe
S. Wloe
4 years ago

can you add more semi conductor’s because they are the most confusing but otherwise GREAT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ian B.
Ian B.
4 years ago

Thanks a lot! Best educational site ever! <3