* Law: A scientific law describes a fundamental relationship in nature that has been repeatedly observed and confirmed through experimentation. It doesn't explain *why* something happens, but rather states *what* happens.
* Theory: A scientific theory is a well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses. Theories can be modified or replaced as new evidence arises.
The law you mentioned is known as the Law of Conservation of Mass. It's a foundational principle in chemistry and physics.
Let me know if you'd like to learn more about this law or any other scientific concepts!
