Science
Matter & Materials
Conceptual
12–14 yrs
The Reactivity Series
金属活动性顺序
Description
Order common metals in the reactivity series and explain how a more reactive metal displaces a less reactive one; describe how carbon is used to extract metals from their oxides in industry
Mastery Evidence
- Recalls the order of common metals in the reactivity series (potassium to gold)
- Predicts whether a displacement reaction will occur given two metals
- Explains why carbon can be used to extract iron from iron oxide but not aluminium from aluminium oxide
- Links the reactivity series to the history of metal use (gold found free, iron smelted, aluminium electrolytic)
Assessment Prompt
If your child was asked why humans used gold and copper before iron and aluminium, could they explain how a metal's reactivity determines how easy it is to extract — and why carbon can extract some metals but not others?
