Particles in a plasma experience collisions than particles in a solid. based on their state of matter alone, is it easier to speak of the shape of the sun or the moon? two unknown substances are in identical beakers. one is a solid and the other is a plasma. if you were given a scale to allow you to obtain the mass of the substance, and had to guess based on mass alone, you would say that the plasma is in the beaker.

Particles in a plasma experience more collisions than particles in a solid.

Based on their state of matter alone, is it easier to speak of the shape of the Sun or the Moon?   moon

Two unknown substances are in identical beakers. One is a solid and the other is a plasma. If you were given a scale to allow you to obtain the mass of the substance, and had to guess based on mass alone, you would say that the plasma is in the lighter beaker.

what is the question here. i think you messed up.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.