Science
Matter & Materials
Language
7–9 yrs
Changes & Separation Vocabulary
变化与分离词汇
Description
Use process vocabulary for changes of state and material separation — dissolve, solution, soluble, insoluble, evaporate, condense, melt, freeze, filter, sieve, mixture, separate — and understand precisely what each term describes, including the important distinction between dissolving and melting
Mastery Evidence
- Distinguish 'dissolve' from 'melt' correctly in context and explain the difference
- Use 'soluble' and 'insoluble' accurately when describing whether a material dissolves in water
- Explain the difference between evaporation and condensation using the correct terms
Assessment Prompt
If your child stirs sugar into tea, can they explain whether the sugar dissolved or melted — and tell you those are different things?
Prerequisites 0
No prerequisites (entry-level topic)
