Keyword Analysis & Research: is it grey matter or gray matter

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
is it grey matter or gray matter	1.42	0.9	7892	92	32
is	1.98	0.2	4882	94	2
it	1.25	0.7	118	21	2
grey	1.79	0.1	9742	49	4
matter	0.92	0.3	7638	90	6
or	1	1	8243	74	2
gray	0.65	0.6	1582	80	4
matter	1.19	0.2	3041	17	6

Keyword	CPC	PCC	Volume	Score
is it grey matter or gray matter	1.44	0.7	5046	20
is it grey matter or gray matter in the brain	1.51	1	7840	93
grey matter or gray matter	0.95	0.2	5990	84
grey matter vs gray matter	1.33	1	6080	19
brain grey matter or gray matter	1.36	0.2	2075	66