This document discusses oceanographic tools used for physical and biogeochemical research including profilers, water samplers, and flotation devices. It notes the challenges of studying the ocean given its vastness, depth, and hazardous conditions. Over time, technological advances like Argo floats, moorings, autonomous underwater vehicles, and satellites have helped increase understanding of the ocean. The Martha's Vineyard Coastal Observatory deploys various instruments and the IFCB Dashboard displays data collected. A career in ocean sciences requires interest, problem-solving skills, and perseverance, with opportunities beyond being a scientist.