Glue is a sticky substance used to bond different materials together. It comes in various forms, such as liquid, stick, or spray, and can be made from natural or synthetic ingredients. People use glue for many purposes, like crafting, repairing items, or even in construction. When you apply glue, it creates a strong connection between surfaces, allowing them to hold together firmly. For example, children often use school glue for art projects, while carpenters might use wood glue to join pieces of wood. No matter the type, glue is an essential tool in both everyday life and specialized tasks.