| Water Planet Inv. 4 | 11 | May 11, 2012 |
| Water Planet Inv. 3 | 6 | May 11, 2012 |
| Water Planet Inv. 2 | 9 | May 11, 2012 |
| Water Planet Inv. 1 | 10 | May 11, 2012 |
| Mixtures & Solutions Inv. 4 | 9 | February 17, 2012 |
| Mixtures & Solutions Inv. 3 | 8 | February 7, 2012 |
| Mixtures & Solutions Inv. 2 | 7 | January 9, 2012 |
| Mixtures & Solutions Inv. 1 | 8 | December 14, 2011 |
| Living Systems Inv. 3 | 11 | November 17, 2011 |
| Grade 4 List 1 | 15 | October 3, 2011 |
| 2011-2012 Rockhopper Vocabulary | 18 | October 3, 2011 |
| Living Systems Inv. 2 | 9 | October 3, 2011 |
| Southeast Region | 10 | October 3, 2011 |
| Mid-Atlantic States | 6 | October 3, 2011 |
| New England States | 6 | October 3, 2011 |
| Living Systems: Inv. 1 | 19 | September 26, 2011 |