you wrote If you took three gallon pots of water and sealed them into three separate cubes where nothing could escape, then left one at [1] room temperature, [2] boiled one, and then [3] froze the other....would they all still weigh the same? If not, which would weigh more?, which would weigh less?
answer: Any high school student knows that the one put into a mile deep well would weight less then the one left on earth's surface. It's the "g"