Reversible Changes
Demonstrate that dissolving, mixing, and changes of state are reversible changes where no new materials are formed
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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?
Demonstrate that dissolving, mixing, and changes of state are reversible changes where no new materials are formed
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Check understanding
- Define a reversible change as one where the original materials can be recovered
- Give at least three examples of reversible changes: melting, freezing, dissolving, evaporating
- Explain how to reverse each example (e.g. freeze melted chocolate, evaporate a solution)
“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?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Matter & Materials
- Age range
- Ages 9–10
Standards