Matching Pairs Match the correct properties of the materialsOnline version Match the correct properties of the materials. by Miguel Angel Preciado Lopez 1 Rubber is ... 2 Bricks are ... 3 Glass is ... 4 A knife is ... 5 Wood is ... 6 Metal is ... 7 Old coins are ... 8 Pencil is ... 9 Gold is ... 10 Fabric is ... transparent. smooth. bendy. rigid. shiny. sharp. hard. soft. dull. opaque.