As part of the sixth-grade earth science curriculum, the students learned about how pests and invasive species can affect an ecosystem. One species they focused on was the Crown of Thorns (COT) sea star. They learned how the sea star’s fast reproduction and limited predators on the Great Barrier Reef are creating quite a problem for that precious ecosystem. The COTs eat the algae in the coral, which is causing the coral to die at rapid rates. Students then learned how scientists are using Remote Operated Vehicles (ROVs) to learn to identify and inject vinegar into the COTs. The vinegar dissolves them from the inside out. These ROVs can work 24 hours a day in all kinds of weather conditions.
Ms. O had the 6th-grade students team up to create their own ROVs. With a grant from National Geographic Education, the students were able to use SeaMate Angelfish ROVs to simulate the work of the scientists out on the reef. The students had to design a frame, add motors, learn how to work their control box, and decorate their ROV.
With the ROVs completed, the students were given the challenge of collecting COT’s from the local MCC Augusta Pool. Students had to figure out how to maneuver their ROV and remove the imitation COTs from the pool.
It was amazing to see the engineering and design process happening while the students took the role of scientists.
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