Cohesion, Adhesion, Surface Tension

Front

What is cohesion?

Back

Cohesion is the attraction between water molecules, causing them to stick together.

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 cohesive forces between liquid molecules.

Front

What is the gaseous form of water called?

Back

Water vapor.

Front

What two elements make up water?

Back

Hydrogen and oxygen.

Front

What is an example of adhesion?

Back

Water droplets sticking to a leaf.

Front

What is an example of cohesion?

Back

Water forming droplets on a smooth surface.

Front

How does surface tension affect small objects?

Back

Small objects, like a needle, can float on water if they do not break the surface tension.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces, due to adhesion and cohesion.

Front

Why is water considered a polar molecule?

Back

Water is considered a polar molecule because it has a partial positive charge on one side (hydrogens) and a partial negative charge on the other side (oxygen).