Physical vs Chemical Changes

Distinguish between physical changes (reversible, no new substances formed) and chemical changes (new substances formed, often irreversible), using conservation of mass to understand both types

Usually learned at ages 11–13

Builds on: The Particle Model (helps), Conservation of Mass, Irreversible Changes, Reversible Changes, Atoms, Elements & Compounds

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On the map from: Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy