## Vocabulary Words

**Edge**- A line segment or curve where the surfaces of a solid meet

**Vertex/Vertices**- A point where the sides of an angle, the sides of a polygon, or the edges of a polyhedron meet; any corner of a solid

**Face/Side**- A flat surface on the outside of a solid

**3-Dimensional (3D)**- Having lengths, width, and thickness. Solid objects that take up space, such as balls, rocks, boxes, and books, are 3-dimensional