Key term for OCR GCSE Chemistry B, used in Atmospheric changes over time.
Distinctive layers of sedimentary rock containing iron oxides that serve as geological evidence for when oxygen first appeared in the oceans and reacted with dissolved iron.
Banded Iron Formations (BIFs) appears in OCR GCSE Chemistry B revision content for Air and water, especially Atmospheric changes over time and Development of oxygen-rich atmosphere.
Create a free account to access OCR GCSE Chemistry B revision notes, track progress, and practise related key terms.
