As part of British Science Week, we explored the job of ROVs (Remotely Operated Vehicles). We thought about the pressure scuba divers experience – the deepest dive recorded is 315m, yet the ocean’s deepest point is 11km. This had us thinking: how can we discover more about our oceans if the depth disallows for humans to explore? We began thinking about bringing specimens back up to the surface for lab inspection, but in order to do is, we would need our ROV to have an ocean grabber that worked. We used our prior knowledge of levers and pulleys and then worked in partners to design our own grabber, before following a set of instructions to construct one. We used science, technology, engineering and maths to make a functioning device!