What Does Conservation of Matter Mean?
The law of conservation of matter is a fundamental principle of classical physics that states that matter cannot be created nor destroyed in any isolated system, but can only be converted from one form to another. This means that during any chemical or physical change that may occur with any substance, no matter is lost despite the visible changes that are observed.
Safeopedia Explains Conservation of Matter
The law of conservation of matter is virtually the same as the law of conservation of energy, which suggests that energy is never destroyed, but only changes form. An example of the law of conservation of matter can be observed when grapes ferment into wine. The matter in the reactants within the bottle undergo changes in chemical form, but the amount of matter remains the same.