Conserved

Summary: No particles are added or removed when a substance melts or freezes. This means that its mass does not change. Scientists say that mass is conserved when a substance melts. Tags: science student-book-7 chemistry Created: 2026-05-21 Last Updated: 2026-05-21

Conserved

No particles are added or removed when a substance melts or freezes. This means that its mass does not change. Scientists say that mass is conserved when a substance melts.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Chemistry/Particles and Their Behaviour/1.4 Melting and freezing.md), Chemistry section.