Rocks: Hard, Soft, Smooth, and Rough (Amazing Science)
| Country | USA |
| Brand | Heinemann Educational Books |
| Manufacturer | Heinemann |
| Binding | Paperback |
| PartNumber | colour illustrations |
| Height | 6.6 |
| Length | 7.8 |
| Weight | 0.16093745126 |
| Width | 0.2 |
| NumberOfItems | 1 |
| ReleaseDate | 0000-00-00 |