Talk:Primordial Particle Manipulation/@comment-24696772-20170312154947/@comment-29564364-20170606115358

Mass is the measurement of the amount of inertia a body possesses.

Weight is the measurement of the effect of a gravitational field on the mass of a body.

Weight is relative to gravity while mass is constant if the object remains unchanged. For example, the same bowling ball will weigh less on the moon than on Earth because the moon's gravity is lesser, yet its mass remains the same.