Properties and cycle

What are the two processes by which water enters the Earth’s atmosphere as water vapor?

• Transpiration and Evaporation

• Runoff and Infiltration

• Evaporation and Condensation

• Precipitation and Condensation

A water molecule travels in the following path:

Ocean → Bird → Ground → Plant

By which process will the water leave the plant?

• Evaporation

• Condensation

• Transpiration

• Runoff

Water molecules are polar. This means that…

• Water molecules are magnetic

• Each molecule has a slight positive charge on one side and a slight negative charge on the other.

• Water molecules can be very cold

• Some molecules are positively charged, but others have a negative charge

How does the amount of water in the hydrosphere change as a result of the water cycle?

• The amount of water on Earth increases over time

• The amount of water on Earth always stays the same

• The amount of water on Earth changes over time, sometimes increasing and sometimes decreasing

• The amount of water on Earth decreases over time

A water strider is an insect that can walk across the surface of water. What allows them to do this?

• Water is a non-polar molecule, and its cohesiveness causes high surface tension

• Water is a non-polar molecule, and its adhesiveness causes high surface tension

• Water is a polar molecule, and its cohesiveness causes high surface tension

• Water is a polar molecule, and its adhesiveness causes high surface tension

Which best describes the role of the water cycle?

• Increases usable supply of Earth’s water

• Reducing pollution in most of the water

• Circulating existing water on Earth

The process of water moving upwards through a plant, against the force of gravity, is an example of

• polarity

• capillary action

• universal solvent

• cohesion

This is the reason why icebergs are able to float on water.

• buoyancy

• polarity

• density

• surface tension

A suction cup with a drop of water on it sticks to a window better than a dry suction cup. This is because water is

• cohesion

• less dense

• polarity

• adhesion

Water does not evaporate as quickly as rubbing alcohol because water molecules have higher

• capillary action

• surface tension

• density

• cohesion