Sort the following materials into two different sections: insulator or conductor.
Rubber
Copper
Aluminum
Plastic
Silver
Salt water
Gold
Water
Wood
Porcelain
Platinum
Nickel
Brass
Ceramic
Diamond
Insulator:
Rubber
Plastic
Wood
Porcelain
Ceramic
Diamond
Conductor:
Copper
Aluminum
Silver
Gold
Salt water
Water
Platinum
Nickel
Brass