Week 3 Lab Data: Pottery (Group C)

Parker Johnson, Group C

Composition

Each member of our group worked with a 600-gram portion of clay tempered according to the proportions below.

Material	Weight (g)	Percent weight (%)
Clay	500	83.3
Sand	80	13.3
Gravel	17	2.8
Sawdust	3	0.5
TOTAL	600	100

Vessel measurements and losses

Every group member took measurements of their pot once they finished working. We left the pots to dry for about 20 hours, and took the same measurements. The following tables will be updated as time goes on and as we record more measurements (after one week, before firing, and after firing). Not every group member recorded different rim diameter and widest diameter values because of the shape of each pot, so information has been included as applicable.

Test bar

Measurement	Original	After 1 day	Loss
Weight (g)	101	90	11
Height (cm)	0.5	0.5	0
Length (cm)	15.75	15.39	0.36
Width (cm)	4.9	4.7	0.2
Scale bar	10	9.5	0.5

Aaron

Measurement	Original	After 1 day	Loss	After 1 week	Loss	Before firing	Loss	After firing	Total loss
Weight (g)	505	N/A		437		441	-4	N/A
Height (cm)	12.7	N/A		12.2		12.7	-0.5	N/A
Diameter at rim (cm)	5.6	N/A		5.6		5.7	-0.1	N/A
Diameter at widest (cm)	8.9	N/A		8.6		8.6	0	N/A
Wall section (mm)	7.6	N/A		6.4		6.4	0	N/A

Eva

Measurement	Original	After 1 day	Loss	After 1 week	Loss	Before firing	Loss	After firing	Total loss
Weight (g)	563	511	52
Height (cm)	9.57	9.32	0.25
Diameter at rim (cm)	4.83	4.24	0.59
Diameter at widest (cm)	9.32	9.74	-0.42
Wall section (mm)	9.6	11.3	-1.7

Parker

Measurement	Original	After 1 day	Loss	After 1 week	Loss	Before firing	Loss	After firing	Loss
Weight (g)	377	336	41
Height (cm)	7.5	7.5	0
Diameter at rim	13	13	0
Wall section (mm)	4.71	6.21	-1.5

Talia

Measurement	Original	After 1 day	Loss	After 1 week	Loss	Before firing	Loss	After firing	Total loss
Weight (g)	529	487	42
Height (cm)	13	12	1
Diameter at rim (cm)	70.5	89.0	-18.5
Diameter at widest (cm)	93.8	75.5	18.3
Wall section (mm)	8.3	8.6	-0.3