Big Idea 7 Earth Systems and Patterns

Why do we call it a water “cycle”?

• Because it is a continuous process

• Because it involves cycling through different states

• Because it is a circular process

• Because it repeats over time

Fill in the blank: The process when a liquid changes to a gas (vapor), caused by an increase in ________.

• temperature

• pressure

• volume

• density

The driving force that causes most evaporation is:

• wind

• sunlight

• humidity

• temperature

What is the process called when water vapor changes back to a liquid, caused by a decrease in temperature?

• Condensation

• Evaporation

• Sublimation

• Precipitation

During the water cycle, what is created by condensation?

• Clouds

• Rain

• Snow

• Fog

What is the gas state of water?

• Water vapor

• Ice

• Liquid water

• Steam

Liquid water becomes water vapor through the process of:

• Condensation

• Evaporation

• Precipitation

• Sublimation

What is runoff?

• That portion of precipitation that runs into other bodies of water rather than being absorbed into ground water or evaporating.

• A type of soil erosion caused by wind.

• The process of water seeping into the ground to become groundwater.

• The evaporation of water from plant leaves.

What causes runoff to flow down into rivers, lakes, and oceans?

• Gravity

• Wind

• Evaporation

• Condensation

The ocean is connected to all of Earth's other bodies of water through:

• rivers and streams

• evaporation and precipitation

• underground aquifers

• all of the above