I believe, the change in perspective actually led those people to try and abolish slavery.
Back then, most people believe that nothing wrong with slavery and view it as something normal that just happen in society. (which is also essential for plantation's operation)
But overtime, they started to see how the slaves were suffering and struggling for their freedom to the point that they started to understand the slaves' feeling and willing to join the fight for their freedom.
The water particles had no chemical change, they only changed form. This makes it a physical change.
A voter or a candidate who does not identify with a political party is called an Independent
