change in a substance that does not alter its composition\nphysical change\nlaw of conservation of…

change in a substance that does not alter its composition\nphysical change\nlaw of conservation of mass\nobservation\nchemical change
Answer
Brief Explanations:
A physical change is a transformation in a substance that does not change its chemical composition. For example, melting ice into water is a physical change as both ice and water are H₂O. The law of conservation of mass is about mass remaining constant in a chemical or physical process. Observation is a method of gathering data. A chemical change results in a new substance being formed. So the term for a change in a substance that does not alter its composition is physical change.
Answer:
physical change