Water expands slightly when if freezes (due to hydrogen bonding) and the resulting ice is less dense than water.(Actually, the water still weighs the same- it just takes up more space when frozen)
No, frozen water weighs the same as liquid water. When water freezes, it expands in volume but maintains the same mass, so the weight remains constant.
Frozen water (ice) is less dense than liquid water, which is why it floats. When water freezes, its molecules form a crystalline structure that causes it to expand, unlike most liquids that contract when they freeze. This expansion is why ice floats on water.
Fish weigh less in water because of buoyancy, which is the upward force exerted by a fluid that counteracts the weight of the object immersed in it. The water exerts an upward force on the fish that partially cancels out the downward force of gravity, making the fish weigh less in water than in air.
Yes, frozen water (ice) is less dense than liquid water, so it actually increases in size when melted. This is why ice cubes float in liquid water.
Yes. Freezing a liquid simply slows the rate at which the molecules travel, it does not add or subtract anything at a molecular level. So a liquid weighs the same as before when it is frozen. So if you melt an ice cube, it will weigh the same in liquid form as it did before it melted. This would change slightly if a high amount of evaporation occurred, but a liter of liquid water will weigh the same once it is frozen.
No.
In a micro gravity, if the mass of each are equal they would 'weigh' the same.
It will still weigh one pound. The only thing that will change is its' size since it will expand by 9% and will become less dense.
If you mean *exactly* one cup by volume, you have the iceberg scenario. The cup of frozen water will be less dense, so it will weigh less. If you just freeze a cup of water, don't spill any, and *don't* trim the excess to bring the volume back to exactly one cup, then it will weigh exactly what it did at room temp.
Fish will weigh less after it is thawed because it loses some water when it is thawed.
Water will stay the same weight when it is frozen, it still has the same molecules that it started with
Yes, because the water that is frozen inside the pea is heavier and harder that a cooked pea, which has less water in it. If you just compare a package of uncooked and cooked peas, you'll feel the difference.
They weigh the same
Objects under water seem to weigh less but they have the same mass as they would out of water.
The same it weighed when it was liquid---but it has a greater volume because ice is "fluffier" than water.
No, frozen water weighs the same as liquid water. When water freezes, it expands in volume but maintains the same mass, so the weight remains constant.
You may weigh less after a shower because the water on your body adds weight, and some of it is lost as the water evaporates.