Cohesion, Adhesion, Surface tension

Front

What is cohesion?

Back

Cohesion is the tendency of molecules of the same kind to stick to one another.

Front

What is adhesion?

Back

Adhesion is the attraction between water molecules and other substances.

Front

What is surface tension?

Back

Surface tension is the elastic-like force existing on the surface of a liquid, caused by the attraction of molecules.

Front

What two elements make up water?

Back

Hydrogen and oxygen.

Front

What is capillary action?

Back

Capillary action is the ability of water to defy gravity and climb up a tube or through small spaces.

Front

Why is capillary action important for plants?

Back

It helps bring water up into the roots and to the branches and leaves.

Front

What is an example of cohesion in everyday life?

Back

Water droplets forming on a leaf.

Front

What is an example of adhesion in everyday life?

Back

Water spreading on a glass surface.

Front

How does surface tension affect small insects?

Back

Small insects, like water striders, can walk on water due to surface tension.

Front

What role does temperature play in surface tension?

Back

Higher temperatures generally decrease surface tension.