when did pluto become a dwarf planet

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did pluto become a dwarf planet	0.71	1	3337	96	36
when	1.54	0.8	8756	91	4
did	1.73	1	6260	55	3
pluto	0.9	0.3	3469	63	5
become	0.04	0.5	2480	26	6
a	1.85	0.2	4316	92	1
dwarf	0.03	0.8	3177	32	5
planet	0.76	0.7	1539	4	6

Keyword	CPC	PCC	Volume	Score
when did pluto become a dwarf planet	1.24	0.5	1689	2
when did pluto become a dwarf planet date	0.39	0.5	2452	39
why did pluto become a dwarf planet	1.09	0.7	8155	92
what year did pluto become a dwarf planet	0.09	0.6	7751	88
how did pluto become a dwarf planet	1.38	0.2	3471	76
what day did pluto become a dwarf planet	1.72	1	3550	64
why did pluto become a dwarf planet for kids	1.54	0.7	6803	2
when did pluto become a dwarf planet and why	1.03	0.3	3866	76
what date did pluto become a dwarf planet	0.55	0.3	729	78
when did pluto become a dwarf	1.43	0.8	2727	98
when was pluto called a dwarf planet	1.06	1	4022	24
when was pluto declared a dwarf	1.33	0.7	9558	18
who declared pluto a dwarf planet	0.81	1	5812	80
how old is the dwarf planet pluto	0.7	0.3	8379	16
who discovered pluto was a dwarf planet	1.97	0.4	4245	12
dwarf planet past pluto	1.52	0.5	4256	11
why was pluto declared a dwarf planet	1.56	0.8	1416	1
who named pluto a dwarf planet	1.86	0.7	7056	63
who discovered the dwarf planet pluto	1.34	0.5	8040	44
discovered pluto planet or dwarf planet	0.02	1	1954	1
how was the dwarf planet pluto discovered	0.57	0.3	7081	2