Re: Questions about the E-Learning

I have found out a really simple answer to the question "Why and how did the density of water change when salt was added to it?". Really, the answer is simple, believe it or not. Salt actually just raises the density of water because the salt is adding mass to the same amount of volume. The video that Ms Leong put up actually summarises the entire meaning on the fact that salt adds mass to the same amount of volume of water.