unit 1

Question 1

What is the earths crust mainly made of?

Answer 1

igneous rocks

Question 2

what are 6 characteristics of primary clay

Answer 2

found where formed
white
free from impurities
large particle size
non plastic
high fire
not fragile
translucent
porous

Question 3

what are 6 characteristics of secondary clay

Answer 3

not found where formed
impurities
vary in color
vary in plasticity
vary in firing temp
vary in fragility
vary in texture
opaque
small pet cow size
vary in porosity

Question 4

where are residential and sedimentary clays found

Answer 4

?

Question 5

what are the 3 clays commonly used by studio potters

Answer 5

porcelain, earthware, and stone wear

Question 6

how are the three common clays diff and what are their harcteristics

Answer 6

porcelain- primary
earthware-secondary
stoneware-secondary

Question 7

translucent

Answer 7

allows light to pass through, but not the object on the other side to be seen

Question 8

transparent

Answer 8

see through

Question 9

opaque

Answer 9

not see through

Question 10

opaque

Answer 10

not see through

Question 11

plasticity

Answer 11

the ability clay has to hold together when manipulated

Question 12

igneous

Answer 12

produced by fire

Question 13

porous

Answer 13

full of holes

Question 14

vitrify

Answer 14

to become glass like

Question 15

residual

Answer 15

left over, remaining

Question 16

what happened in 30,000 BCE

Answer 16

first use of clay

Question 17

9,000 bce

Answer 17

first firing of clay

Question 18

6,000 bce

Answer 18

first use of colors

Question 19

44000 bce

Answer 19

first controlled firing

Question 20

4,000 bce

Answer 20

writing on clay tablets

Question 21

2500 bce

Answer 21

glazing wheel use