Explore the fascinating world of sand in this comprehensive 24-minute video. Discover the various types and compositions of sand found in beaches and deserts, including quartz, arkose, black, olivine, carbonate, and gypsum sands. Learn about unique sand formations like ooids, foraminifera shells, and even parrotfish poop. Examine the impact of human activity on sand composition and the emergence of 'plastic sand'. Delve into the diverse uses of sand by humans and wildlife, and gain insights into sand deposition processes in deserts and beaches. Uncover lesser-known sand varieties and their origins, providing a thorough understanding of this ubiquitous yet often overlooked geological material.