Water Properties

Water is essential to Earth's climate systems because it:

• regulates temperature through heat absorption and release

• is the primary source of oxygen

• blocks harmful solar radiation

• is the main component of the Earth's crust

What is the result of the uneven distribution of charge in a water molecule?

• Polarity

• Covalent bonding

• Ionic bonding

• Non-polarity

Hydrogen bonds give water unique properties and influence its behavior by:

• allowing it to expand when frozen

• making it a good solvent

• causing high surface tension

• all of the above

Why is water considered a universal solvent?

• Because it can dissolve other substances or solutes.

• Because it is a liquid at room temperature.

• Because it is colorless and odorless.

• Because it is found in nature.

What is the definition of cohesion?

• Attraction between water molecules

• Repulsion between water molecules

• Attraction between different substances

• Repulsion between different substances

Which of the following is an example of cohesion in nature?

• Water droplets

• Sand particles

• Metal surfaces

• Plastic sheets

Adhesion works with which of the following?

• Cohesion

• Diffusion

• Osmosis

• Evaporation

What is surface tension a result of?

• Cohesion

• Adhesion

• Friction

• Gravity

Surface tension creates a "skin" on what?

• Water's surface

• Air's surface

• Oil's surface

• Sand's surface

Capillary action allows water to move against ______.

• gravity

• friction

• inertia

• momentum