Not until it has been immersed for such a long time that it begins to dissolve(weeks).
To be covered fully in a mass or body of water.
You cannot.
volume
no
if anything it would be reasonable to expect it to lose mass.
Centre of mass is a convinient point where whole mass of the body is supposed to be acting and for bodies of small shape it concides with the geometrical centre. Centre of bouancy is the centre of the immersed portion of the body inside the liquid.
You lose body weight.
10
Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the center of mass of the displaced fluid.
75% of our body is, by mass, water.
Water displacement is used to measure the volumn of an irregular shaped object. If a Bowling ball was immersed in water, you could use the difference in the before and after water amount to give you the mass of the object inserted.
The mass of a seed leaf changes depending on the water and internal processes. When some seed leaves lose water due to transportation, they lose mass. Other will start to sprout and produce their own food, which cause them to gain mass.