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Define the following term:

Bat

A flat disc made out of plaster, wood, or plastic which is affixed to the wheel

head with clay or pins. Bats are used to throw pieces on that would be difficult to lift off the wheel

head.

Define the following term:

Banding Wheel

A revolving wheelhead which sits on a pedestal base. It is turned by hand and used for finishing or decorating pottery.

Define the following term:

Burnishing

The ancient rubbing process of burnishing polishes the outside

skin of a clay pot while greatly reducing its porosity. This finishing is done by hand, using a stone or a metal piece.

Define the following term:

Coil

A piece of clay rolled like a rope, used in

making pottery.

List:

3 things wedging does

1.Removes air bubbles.

2.Mixes hard and soft clay.

3.Gets clay particles moving in one direction.

Define the following term:

Kiln

A structure for firing ceramics.

Define the following term:

Oxidation Firing

Firing atmosphere characterized by the presence of excess oxygen. Under

such conditions, the fire burns cleanly and total combustion results.

Define the following term:

Pit firing

Firing technique in which fuel and vessel are placed together in

an excavated pit, sometimes covered with stones or earth.

Define the following term:

Plasticity

The ability of clay to be molded and maintain its shape.

Define the following term:

Reduction Firing

Firing atmosphere characterized by the shortage or absence of oxygen. Under

such conditions, combustion will be incomplete and carbon monoxide will

be created.

Define the following term:

Pinch pottery

The simplest method of pottery manufacture, involving the opening out and expanding of a

ball or cone of clay by squeezing the clay between the fingers, while the shape is

supported by and turned in the potter's hand. It tends to result in small, round-based,

open shapes (such as bowls).

Define the following term:

Slab building

Hand-building technique which involves forming flat slabs of clay and connecting them to form

a vessel

Define the following term:

Slip

Liquid mixture of clay and water that can be applied over surface of vessel to

affect color and texture. It can be used to attach clay pieces together.

Define the following term:

Wheel-thrown

The term used to describe vessels that have been made on the potter's wheel.

Define the following term:

SCRAFFITO

Carving designs into leather hard clay.

Define the following term:

BISQUE ware

Clay that has been fired once. This clay will not break down in water.

Define the following term:

GLAZE

Glaze is a group of chemicals mixed in water

that when fired to the proper temperature will

form a waterproof surface on your pottery that is

similar to glass.

Define the following term:

BONE DRY clay

Clay that has no moisture. Clay in this form is ready to fire.

Define the following term:

LEATHER HARD CLAY

Still slightly wet and can be formed and carved. Leather hard clay is stiff and holds its shape when handled.

Define the following term:

GREENWARE

Clay that has not been fired.

Includes leather hard and bone dry.

Define the following term:

STAIN

Stains are the chemicals used in glazes to create colors. They can be mixed with

clay to change the color of the clay. Some stains that we use are

Red Iron Oxide, Cobalt Carbonate, Copper Carbonate,

and Rutile.

Define the following term:

GLAZE FIRE

Second firing where glazes melt on to the pottery.

Define the following term:

Blistering

Blistering refers to the appearance of broken bubbles found on the glazed surfaces

of fired ceramic pieces.

Define the following term:

The Foot

The foot refers to the bottom of a ceramic item.

Define the following term:

Translucent

Translucent refers to transparent color, allowing color underneath to show.

Define the following term:

Stencil

Stencil refers to the process of using paper perforated with a design through which color can be brushed or sponged

onto a surface.

Define the following term:

Stilts

Stilts are supports used to separate a glazed article from a shelf during firing.

Define the following term:

Score

Score refers to the process of scratching tiny criss-cross lines on

areas of greenware that will be fastened together.

Define the following term:

Palette Knife

A Palette Knife is a flexible knife withno sharp point used for mixing or

stirring color.

Define the following term:

Opaque

Opaque refers to nontransparent color.

Define the following term:

Kiln Furniture

Kiln Furniture consists of implements used to

make full use of a kiln's capacity (shelves, posts

and stilts).

Define the following term:

Kiln Wash

Kiln Wash is a coating used on the tops of kiln shelves and kiln floors to protect them from

glaze drippings.

Define the following term:

Greenware

Greenware is the term used

for unfired clay articles.

Define the following term:

Glaze

Glaze is a fired finish consisting of a prepared

mixture of frit that produces a glass-like surface when fired.

Define the following term:

Crawling

Crawling refers to a glaze defect in which the glaze pulls away or crawls away from the bisque, leaving bare

bisque areas.

Define the following term:

Crazing

Crazing refers to a glaze defect in which hairline cracks appear on

a fired glaze surface.

Define the following term:

Banding

Banding refers to applying color

or texture to ware in decorative bands.

Define the following term:

Lip

The edge of the vessels opening.

Define the following term:

Neck

Part of jar or restricted vessel between body and rim, marked by

constriction and change in orientation of vessel

walls.

Define the following term:

Calipers

A tool used to measure the diameter of round

forms, for example calipers are used to get

lids to fit just right

Define the following term:

Centering

Technique to move the clay in to a symmetrical

rotating axis in the middle of a wheel head

so you can throw it.

Define the following term:

Chuck

A piece used to aid the potter in trimming. A chuck is a form that

can hold a pot upside-down above the wheel head while the

potter trims it. Chucks are thrown and bisque fired clay cylinders which are open on

both sides.