Keyword Analysis & Research: why does air cool when it expands

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why does air cool when it expands	0.16	1	7514	20	33
why	1.83	0.9	4519	13	3
does	0.58	1	4821	67	4
air	1.66	1	8602	42	3
cool	1.49	1	5969	38	4
when	1.02	0.6	2636	59	4
it	1.65	0.4	6993	36	2
expands	1.11	0.4	7494	85	7

Keyword	CPC	PCC	Volume	Score
why does air cool when it expands	0.89	0.3	7282	60