Properties of Water

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces, often seen in plants where water moves from roots to leaves.

Front

Why is water considered a universal solvent?

Back

Water is called a universal solvent because it can dissolve more substances than any other liquid, due to its polar nature.

Front

What types of substances are least likely to dissolve in water?

Back

Nonpolar substances, such as fats and oils, are least likely to dissolve in water.

Front

Why does ice float on water?

Back

Ice floats on water because, as it freezes, it expands and its density decreases, making it less dense than liquid water.

Front

What is the significance of water's high heat capacity?

Back

Water's high heat capacity allows it to absorb and retain heat, helping to regulate temperature in large bodies of water and the environment.

Front

Define cohesion in the context of water.

Back

Cohesion is the property of water molecules to stick to each other due to hydrogen bonding, which contributes to surface tension.

Front

Define adhesion in the context of water.

Back

Adhesion is the property of water molecules to stick to other substances, which helps in processes like capillary action.

Front

What is surface tension?

Back

Surface tension is the elastic tendency of a fluid surface that makes it acquire the least surface area possible, allowing small objects to float on water.

Front

Explain the term 'density' as it relates to water.

Back

Density is the mass per unit volume of a substance; water is most dense at 4°C, which is why ice floats.

Front

What role does water play in temperature regulation for the environment?

Back

Water's high heat capacity allows it to absorb heat without a significant change in temperature, stabilizing the climate.