Science
Matter & Materials
Conceptual
9–10 yrs
Dissolving & Solutions
溶解与溶液
Description
Understand that some materials dissolve in liquid to form a solution, and describe how to recover a substance from a solution by evaporation
Mastery Evidence
- Explain that dissolving means a solid mixes completely into a liquid to form a solution
- Describe how to recover a dissolved substance by evaporating the liquid
- Distinguish between a mixture (can see separate parts) and a solution (looks clear, fully dissolved)
Assessment Prompt
Can your child explain what happens when sugar dissolves in tea, and figure out how to get the salt back from salty water?
