In "Invisible Forces: Tides," two animated rocks investigate why ocean water rises and falls. Through humor and observation, the episode introduces tides, the Moon, the Sun, Earth’s alignment, and the gravitational pull that causes higher tides. The dialogue contrasts mistaken ideas with evidence-based reasoning, modeling scientific inquiry, prediction, and revision of theories. Key vocabulary and concepts include tides, alignment, invisible forces, ocean movement, and the relationship between the Moon, Sun, and Earth. This Spanish-language science video supports Earth and space science curricula by connecting celestial motion to observable changes in coastal environments.