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IB Biology SL A1.1.4 Adhesion of water

IB Biology SL A1.1.4 Adhesion of water
IB Biology syllabusFirst assessment 2025

Practise recognising adhesion in water by linking adhesive properties to capillary movement through soil in multiple-choice contexts.

How this is tested

  • apply adhesion to explain capillary action and water movement in soil
  • distinguish adhesion from water properties linked to cooling or stable temperatures
  • interpret option sets where only one consequence follows from adhesive behaviour
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