Properties of Water 6.6 b - Review

Front

What is surface tension?

Back

Surface tension is the cohesive force between water molecules at the surface of water.

Front

What is cohesion in water molecules?

Back

Cohesion is when water molecules stick easily to other water molecules.

Front

What is adhesion in water molecules?

Back

Adhesion is when water molecules stick to other substances.

Front

Why does ice float on water?

Back

Ice floats because as water freezes, it expands and its density decreases.

Front

What happens to water molecules when they freeze?

Back

When water freezes, it expands and traps air, making it less dense.

Tags

NGSS.MS-PS1-4

Front

What is a polar molecule?

Back

A polar molecule has a positive and a negative end, which allows it to interact with other polar substances.

Front

How does water's polarity affect its ability to dissolve substances?

Back

Water's polarity allows it to dissolve many substances, making it a universal solvent.

Front

What is the difference between cohesion and adhesion?

Back

Cohesion is the attraction between water molecules, while adhesion is the attraction between water molecules and other substances.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces against gravity, due to cohesion and adhesion.

Front

What role does temperature play in the density of water?

Back

As temperature decreases, water becomes denser until it freezes, at which point it becomes less dense.

Tags

NGSS.MS-PS1-4