what you think happens to the frazen cup of water tat melts will it be the same amount of water as originally had
No. There are two main differences (and most others follow on from them): the temperature is lower so the frozen water is solid rather than liquid and the density has decreased (the same volume of water will have expanded).
Take a block of frozen water (ice) and drop it on your foot - ouch!. Then drop the same amount as water on your foot. I know I would prefer to drop water on my foot that solid ice.
Water will stay the same weight when it is frozen, it still has the same molecules that it started with
no
Yes - the Earth has a finite amount of water on it. This water cycles between the oceans and the atmosphere.
During global warming all of the water was frozen leading to not much water now that it got warmer (green house affect ) there is more water now than then written by a fifth grader
Water is an unusual compound. When most substances freeze they contract. When liquid water freezes it expands. Density is mass divided by volume. You still have the same amount of matter, but frozen water it takes up a greater volume. Therefore, the density of frozen water is less than that of liquid water. So, it floats.
The amount of water on the planet stays the same. If huge amounts of this water is frozen on land, in glaciers, then it means that there is less water in the oceans, and sea levels are lower.
Yes, if all of the objects have the same amount of volume they will displace the same amount of water!
They are exactly the same amount
Ice is just water in it's frozen, or solid, state.
pressure of the depths are the same