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CLAY QUIZ

1. Mud; moist, sticky dirt. In ceramics, clay is fine-grained, firm earthy material that is plastic when wet, brittle when dry, and very hard when heated.
   
2. One of the most common types of ceramic clay. It is a low-fire clay that is porous and not waterproof.
   
3. Generally refers to unfired pottery.
   
4. Clay that is thoroughly room dried is said to be this.
   
5. A state in which clay has lost moisture to evaporation, but has not yet completely hardened. The clay is damp enough to be joined to other pieces with scoring and slip.
   
6. A special oven or furnace that can reach very high temperatures and is used to bake, or fire clay.  The temperature can reach 2500 degrees
   
7. The process of baking and hardening pottery.
   
8. Clay that has been fired once but has not been glazed.
   
9. These are cut to shape and joined together using scoring and wet clay called slip.
   
10. Mixing finely ground clay with water makes this. It is a fine, liquid form of clay used to cement together parts that have been formed separately.
    
11. Making scratches in pieces of clay to be joined together. Roughening the surface.
    
12. A coating of material applied to ceramics before firing that forms a glass-like surface.
    
13. A type of sculpture in which form projects from a background.
    
14.  A technique to make clay plastic and remove air pockets.
    
15. When clay can be easily modeled, molded or pressed into a desired shape, it is said to be this.