"Discovering the Intricacies of Sand: 8 Granular Facts"

Sand is made of tiny, loose grains of material that can be composed of eroded rock, crushed seashells, parrotfish poop, or the remains of calcium-containing sea creatures. Sand can be found in various colors, including black, white, pink, green, yellow, red, and blue. Sand is used in various industries, including construction, metal casting, water filtration, and ceramics. Meiofauna, tiny animals that live among grains of sand, help clean up beaches. Sand dunes can be found throughout the solar system and may provide insight into the composition of other worlds.