why does hot air rise up

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why does hot air rise up	0.1	1	5887	2	24
why	0.07	0.6	2071	51	3
does	1.19	0.7	4138	32	4
hot	0.44	0.9	6515	40	3
air	0.88	0.1	8241	52	3
rise	0.49	0.1	2070	39	4
up	0.14	0.5	8040	72	2

Keyword	CPC	PCC	Volume	Score
why does hot air rise up	0.68	0.9	1601	94
why does hot air rise and cold air sink	1.04	0.4	1106	83
why does hot air rise and cool air sink	0.81	0.9	5702	97
why do hot air balloons rise up	0.76	0.1	6944	43
why does heated air rise	1.17	1	8786	76
does hot air rise up	1.89	0.6	7734	85
why does air rise when heated	0.3	0.4	123	83
why does heat rise in the air	0.93	0.2	6044	21
why does warm air rise	0.42	0.5	1355	29
why does hot air expand	1.69	1	3407	100
why does warmer air rise	0.06	0.2	7501	19
why is hot air hot and expands	1.66	0.5	7498	33