the two colors are not a big leap from each other.

many ppl have eyes that change color. mine were blue until i was 7 & they've been green for the remaining decades. on certain days, tho, they turn more of a yellow.

there are biological reasons for this. it has nothing to do with the phases of the moon. as for 'becoming' something...you are becoming irrational.

most kids around here take biology at 16. i don't know if it's offered in your school, but it would do you a world of good to take it & pay attention.