Balsa is a type of lightweight wood derived from the balsa tree (Ochroma pyramidale), which is native to Central and South America. Known for its low density and high strength-to-weight ratio, balsa is commonly used in model building, crafts, and various applications in the aerospace industry. Due to its softness, balsa can be easily cut and shaped, making it a popular choice for hobbyists and professionals alike. It is also used in the production of composite materials and as insulation in some construction projects, showcasing its versatility beyond just crafting.