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 property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.

Front

What is capillary action?

Back

Capillary action is the ability of water to defy gravity and climb up a tube or narrow space.

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 happens when water sticks to a leaf?

Back

This is an example of adhesion.

Front

What is an example of cohesion in nature?

Back

Water droplets forming on a smooth 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 cohesion play in water transport in plants?

Back

Cohesion helps water molecules stick together, allowing them to move up through the plant.

Front

What is the relationship between adhesion and capillary action?

Back

Adhesion helps water molecules stick to the walls of a tube, while cohesion keeps the water molecules together, allowing capillary action to occur.