Properties of Water - part 1

Front

What property of water do plants use to move water upward from their roots to their leaves?

Back

Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces, allowing plants to transport water from roots to leaves.

Front

What percent of Earth's surface is covered by water?

Back

71% of Earth's surface is covered by water, which is crucial for supporting life and regulating climate.

Front

What property of water allows it to form droplets on a penny?

Back

Surface tension is the property of water that allows it to resist external force, enabling it to form droplets and hold a certain amount of water on a surface like a penny.

Front

True or False: Hydrogen bonds between water molecules give water a high level of cohesion.

Back

True. Hydrogen bonds create strong attractions between water molecules, resulting in high cohesion.

Front

What property of water enables it to interact with other polar substances?

Back

Polarity is the property of water that allows it to interact with other polar substances, making it an excellent solvent.

Front

Define capillary action.

Back

Capillary action is the ability of a liquid to flow in narrow spaces without external forces, often seen in how water moves through soil and plant roots.

Front

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

Back

Water's high heat of vaporization allows it to absorb a lot of heat before it evaporates, helping to regulate temperature in the environment.

Front

Explain the concept of cohesion in water molecules.

Back

Cohesion refers to the attraction between water molecules due to hydrogen bonding, which contributes to water's high surface tension.

Front

What is the role of hydrogen bonds in water's properties?

Back

Hydrogen bonds are responsible for many of water's unique properties, including its high specific heat, surface tension, and solvent capabilities.

Front

How does water's density change when it freezes?

Back

Water expands and becomes less dense when it freezes, which is why ice floats on liquid water.