The Water Cycle Practice

What is it called when plants give off water vapor as a waste product?

• condensation
• evaporation
• sublimation
• transpiration

What is the energy source for the water cycle?

• the sun
• the earth
• water
• the moon

Part of the water cycle where an excess of water runs down and does not sink into the soil and eventually makes it to the rivers, lakes, and oceans.

• aquifer
• hydro
• vapor
• runoff

The change of a liquid to a gas; the sun heats energy up and turns water into vapor (gas)

• evaporation
• vapor
• precipitation
• condensation

The hydrologic cycle continuously recycles _______ through Earth's systems.

• rocks
• water
• oxygen
• carbon dioxide 

Water released from clouds as rain, snow, or hail.

• evaporation
• condensation
• accumulation
• precipitation

What is water vapor doing when it changes to liquid water?

• evaporating

• condensing

• precipitating

• runoff

Which best explains why runoff is important?

• It returns water to other locations on Earth
• It increases the chance of flooding
• It makes evaporation occur faster
• It increases condensation

Which reservoir in the water cycle contains the most water?

• Ice Caps
• Lakes
• Groundwater
• Oceans

During which stage do clouds form?

• condensation
• evaporation
• precipitation