Properties of Water and Surface Tension

Front

What is surface tension?

Back

Surface tension is the cohesive force between liquid molecules at the surface of a liquid, which makes the surface behave like a stretched elastic membrane.

Front

How does soap affect the surface tension of water?

Back

Soap lowers the surface tension of water, allowing bubbles to form more easily.

Front

What is cohesion in the context of water?

Back

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

Front

What is adhesion in the context of water?

Back

Adhesion is the attraction between water molecules and other substances, allowing water to stick to surfaces.

Front

Why can some insects walk on water?

Back

Some insects can walk on water because their weight is less than the surface tension of the water.

Front

What role does cohesion play in plant water transport?

Back

Cohesion helps water molecules stick together, allowing them to be pulled up through the plant's xylem.

Front

What role does adhesion play in plant water transport?

Back

Adhesion helps water molecules stick to the walls of the plant's xylem, aiding in the upward movement of water.

Front

What is an example of cohesion in everyday life?

Back

An example of cohesion is water droplets forming on a leaf.

Front

What is an example of adhesion in everyday life?

Back

An example of adhesion is water spreading on a glass surface.

Front

How does temperature affect the surface tension of water?

Back

As temperature increases, the surface tension of water decreases.