A1.1.4—Adhesion of water
Adhesion attracts water to other polar or charged surfaces, supporting capillary movement through narrow spaces such as soil pores and plant tissues.
- Syllabus
- First assessment 2025
- Objective
- A1.1.4
- Level
- HL
Concept essentials
- Adhesion is attraction between water and another surface.
- Water adheres well to polar or charged materials.
- Adhesion and cohesion act together during capillary movement.
ConceptIB Biology HL