Construction paper, also known as sugar paper, is colored cardstock paper made mainly from wood pulp. The texture is slightly rough, and the surface is unfinished, with small particles visible on the papers surface. The term "construction paper" was associated with the material in the early 20th century when it was primarily advertised for classroom settings as an effective canvas for supporting multiple drawing media. There are two main types of construction paper: 100% sulphite construction paper and groundwood construction paper. The former is characterized by long, strong fibers that interlock, allowing for an even, smooth tone, a hard work surface, and intense colors. It accepts dry mediums and even tempera paint is used successfully by many art teachers. The latter gets its name from using ground wood pulp in the manufacturing process. It cuts nicely and glues well, but does not share the fade resistance of a 100% sulphite paper, nor does it fold quite as easily. Groundwood paper is usually less expensive and also works well with tempera paint and dry mediums. Construction paper is a staple in art classrooms across the country and is great for a variety of activities, including arts and crafts projects like flower-making, decorating placemats, and making props.