Student Guide (continued)
Water
4.18
Concrete
0.88
Wood
1.80
Aluminum
0.90
Glass
0.84
Sand
0.83
Steel
0.49
Iron
0.44
Copper
0.38
Lead
0.16
Gold
0.13

Student Guide continued Water 418 Concrete 088 Wood 180 Aluminum 090 Glass 084 Sand 083 Steel 049 Iron 044 Copper 038 Lead 016 Gold 013 class=