Part 2 of the NeMO Curriculum includes activities based on how scientists study active volcanoes on the deep ocean floor. Each activity also gives clues to help students figure out what happened to the missing rumbleometer. The four activities are:

1) Using triangulation to locate an earthquake epicenter, so the students know where to take the ship.
2) Looking for clues as to why the rumbleometer is stuck, by making an ocean floor traverse with a remotely operated vehicle.
3) Creating cross-section profiles of the seafloor to determine where there have been depth changes due to an eruption.
4) Graphing data from the rumbleometer instrument and using it to figure out what happened at the volcano and when.

Students should follow the curriculum step by step and not jump ahead, because each activity builds on the one before.