Reversible Changes
Demonstrate that dissolving, mixing, and changes of state are reversible changes where no new materials are formed
Typical age: 9–10 years
“Can your child explain that melting chocolate or dissolving sugar can be undone — you can get the original material back — because these are reversible changes?”
0 / 3 mastered
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Needs first
- Changes & Separation Vocabulary
Describing dissolving and changes of state as reversible requires the vocabulary from the process terms node
- Dissolving & SolutionsREQUIRED
Must understand dissolving before demonstrating it is reversible
- Heating & Cooling ChangesREQUIRED
Must understand state changes before categorising them as reversible
Unlocks next
- Physical vs Chemical ChangesREQUIRED
KS3 physical vs chemical changes extends KS2 reversible vs irreversible changes
- Conservation of MassREQUIRED
Must understand reversible changes before investigating conservation of mass during changes
- Irreversible ChangesREQUIRED
Must understand reversible changes before contrasting with irreversible ones