In this Shark Tank-style lesson plan, students are given a marine biology challenge, and tasked with inventing a device to address the problem. Working in teams, they will brainstorm, design, and build prototypes of their solutions, applying principles of marine biology and engineering. Each team will then present their invention to a panel of judges, explaining the science behind their design and how it effectively addresses the prompt. This activity promotes creativity, critical thinking, and public speaking skills while fostering an understanding of marine conservation.