The mass of an object can be subtracted or added. For example, with water, you can just add more to have a larger mass. With ice, you can just chop off a portion to lessen its mass.
Though, if you take a piece of paper and crumple it up, the mass will stay the same.
It just depends on the context of the situation.
Yes
Because mass is not the same as weight. Weight is mass times gravity so your weight will change if you are on the earth or moon but your mass will stay the same.
Its mass remains the same (except for the very small amounts that stick to the knife blade).
No, the apple mass does not stay the same after taking a bite. When a person takes a bite out of an apple, a portion of the apple's mass is removed. The total mass of the apple decreases as a result.
Your mass is always the same.
Yes, no gas is given off, therefore the mass of conversation will stay the same.
Yes
Your mass will stay the same. Mass is always the same no matter what.
The mass will always stay the same but the gravitational pull towards the centre of the earth (weight) will change.
Your mass will stay the same no matter where you go.
not always it depends
Your mass would stay the same. Mass is the amount of matter in an object, so your mass would stay at 68kg.
After water has been boiled, its mass will stay the same.
no
mass mass
The two properties of a crayon that will stay about the same after being melted is it's color and mass.
As the law of conservation of matter and mass dictates, matter can't be created or destroyed, only changed. The mass and the number of atoms always stay the same through a chemical reaction, just rearranged.