9780060280185 | Harpercollins Childrens Books, February 1, 2000, cover price $15.95 |
About this edition: As they consider sorting their rock collection by color, size, type, and hardness, Josh and Amy learn that the same objects can be organized in many different ways.
9780064467292 | Harpercollins Childrens Books, January 1, 2000, cover price $5.99 |
About this edition: As they consider sorting their rock collection by color, size, type, and hardness, Josh and Amy learn that the same objects can be organized in many different ways.
9780060280192 | Harpercollins, February 1, 2000, cover price $15.89 |
About this edition: As they consider sorting their rock collection by color, size, type, and hardness, Josh and Amy learn that the same objects can be organized in many different ways.
9780606186865 | Demco Media, April 1, 2000, cover price $13.59 | also contains
Dave's Down-To-Earth Rock Shop |
About this edition: As they consider sorting their rock collection by color, size, type, and hardness, Josh and Amy learn that the same objects can be organized in many different ways.