Changes of state
What Changes of state means in Combined Science GCSE, as defined for AQA.
Definitions of Changes of state
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Reference: AQA
Water is continuously evaporated and precipitated, and water vapour condenses into clouds as moist air rises and cools.
Melting, freezing, boiling and condensing, each occurring at the melting point or boiling point of a pure substance.
Topics that use Changes of state
- How materials are cycled (AQA GCSE)
- The three states of matter (AQA GCSE)
Related terms
- Boiling point
- Bonding and structure
- Carbon cycle
- Changes of state and energy transfer
- Combustion
- Comparing temperature with fixed points
- Cycles maintaining supplies for life
- Cycling of matter
Using Changes of state in the exam
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