In this episode of "Hello World" podcast, Jacob discusses the intriguing process of the Earth's water cycle, elaborating on its three major components - evaporation, condensation, and precipitation. He explains how evaporation sees the sun turning bodies of water into vapor which then ascends into the Earth's atmosphere. This vapor cools down as it climbs high into the sky, forming tiny droplets and resulting in the process of condensation, which subsequently leads to the creation of clouds. As the droplets within these clouds become larger and heavier, they fall back to the Earth as forms of precipitation, hence completing the cycle. Jacob ends by emphasizing the integral role the water cycle plays in the continual movement of water between oceans, atmosphere, and land, and its significance to the survival of all living organisms.