Clay Basics
What is the first stage of clay, where it is workable and can be shaped?
Plastic Clay
What is the purpose of glazing pottery?
To provide a glass-like finish and seal the surface
What is the first firing of clay called?
Bisque firing
What are the two main ingredients in traditional paper mache?
Paper and glue (or paste)
What is plaster primarily made from?
Gypsum
At what stage does clay begin to dry and lose its plasticity?
Leather-hard
What should you avoid when applying glaze?
Glazing the bottom of the piece
At what temperature does earthenware typically fire?
1,830°F to 1,850°F
What is the first step in creating a paper mache project?
Preparing the form or mold
How long does plaster typically take to set?
About 30 minutes to an hour
What stage occurs after the clay has been fired once and is no longer porous?
Bisque
Why is it important to apply multiple coats of glaze?
To achieve an even and vibrant color
What is the purpose of the second firing in the pottery process?
To set the glaze
How long should you let each layer of paper mache dry before adding another?
At least 24 hours
What safety equipment should be worn when working with plaster?
A mask and gloves
What is the final stage of clay that involves glazing and firing?
Glazeware
What tool is often used to apply glaze evenly on a sculpture?
A brush
What type of kiln is often used for firing pottery?
Electric or gas kiln
What is a common use for paper mache in art?
Crafting sculptures or masks
What is a common technique for using plaster in sculpture?
Casting in molds
What is the term for clay that has completely dried out and can no longer be worked?
Bone dry
What is the term for the chemical reaction that occurs during firing that causes glaze to melt and fuse?
Vitrification
Why is it important to control the temperature during the firing process?
To prevent cracking of the clay
What is one way to strengthen a paper mache structure?
Adding more layers or using a stronger adhesive
What is the process of mixing plaster called?
Slaking