Cohesion and adhesion | Middle school chemistry | Khan Academy

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Water’s cohesive property explains why droplets form rounded shapes on surfaces. Water molecules attract each other like tiny magnets, which leads to the cohesive forces that hold them together. Adhesion, on the other hand, occurs when molecules cling to other substances, like water and glass forming a meniscus. Together, cohesion and adhesion shape water’s unique behavior on various surfaces.

00:00 Intro 00:17 What is Cohesion? 02:07 What is Adhesion? 03:00 What is a meniscus? 03:56 How fog nets collect water from air 04:38 Summary

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