Some materials look alike but different in qualities:
Match looks alike materials.
Leather
Gold
Steel
Glass
 
silver
clear plastic
rubber / rexine
brass
Underline whether the following are manmade or natural material [click to underline]:
Plastic is manmade natural  
Leather is manmade natural  
Fabric is manmade natural  
Glass is manmade natural  
Ceramic is manmade natural  
Wood is manmade natural  
Stone is manmade natural  
Gold is manmade natural