 | | Meeting Formaldehyde Fred |
This group of seven students has been studying the ocean by doing math, reading, writing, art and music activites. We went on a field trip to Underwater World at the Mall of America in January. To finish  | | Checking out the teeth |
the unit we dissected a dogfish (Squalus) shark.
 | | Cutting begins |
 | | First look inside |
 | | Removing the livers |
 | | Stomach |
 | | Stomach and contents |
 | | Spotting the tiny heart |
 | | Carefully removing the heart |
 | | Heart after removal |
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