Two pages on the chemistry and physics of sea water, taught with the calculations Paper 1 sets.
The water cycle, salinity and dissolved gases
You need two scales in your head for this topic: the particle scale, where evaporation, diffusion and dissolving happen, and the ocean scale, where the water cycle, pH, s...
8 questions · 23 marks
Revise this topicDensity, the effects of depth and upwelling
Density is mass per unit volume, and in the sea it depends on how cold and how salty the water is; those density differences drive convection and explain why cold water l...
8 questions · 24 marks
Revise this topic