By MST teacher Tasha Greenwood
On Friday Oct 20th, students from Division 2 Math, Science, and Technology class took a field trip to Woods Hole on Cape Cod. This tiny town in Falmouth is most famous for the Woods Hole Oceanographic Institute (WHOI), one of the premiere marine research organizations in the world. We spent the day with an organization called Zephyr Marine Education, which focuses on bringing the experience of marine research and exploration to students from around the state.
We began the day with a two-hour “research cruise” with Zephyr staff, deploying instruments and collecting data in the same fashion as a professional marine science expedition. We deployed a mooring with a data logger to look at depth versus temperature and pressure. The mooring was eventually recovered via an acoustic signal, much like the types of sonar we have been studying in class. We towed a camera to check out the eel grass and sargassum habitats, and a dredge to collect creatures. The highlights from the dredge included a horseshoe crab, sea stars, hermit crabs, spider crabs, and multitudes of purple urchins. We also towed a plankton net, and examined light attenuation through the water column with a fun experiment featuring M&Ms! Perhaps the most exciting wildlife encounter, though, was the group of seals hanging out on the rocks at low tide.
We ate lunch in the town of Woods Hole, and then made our way back to Zephyr to play with augmented reality sandboxes, upon which is a projection of topography that shifts based on your movement of the sand. You can add rainwater to fill lakes and oceans and create waves.
Our day ended with a tour of the WHOI Exhibit Center. One of the most exciting parts of the museum is an AUV (autonomous underwater vehicle), which was designated to record video of sharks in their natural habitat. However, the sharks ended up biting the AUV and there is footage of the entire encounter! Visitors can touch the actual AUV which is on display. There was also a replica of the deep-sea submersible research unit Alvin. We tried to fit all of Div 2 into Alvin but – even though we’re a small group – there wasn’t quite enough space in the tiny unit.
Back in the classroom, we analyzed data from various deployments and connected this information to what we have been studying in oceanography. As our learning progresses, these applications of marine research will be put to use in other projects, and culminate in the building of Sea Perches at the end of the year.