Unit 8 Water Cycle

Why is the water cycle considered closed and not open like most energy systems?

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What is the water cycle?

• the 3 forms of water
• the movement of water on, above, or below the surface of the Earth
• when water melts
• when clouds form

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What part of the water cycle does this picture show?

• condensation
• precipitation
• evaporation

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What is is called when water turns into a vapor?

• EVAPORATION
• PRECIPITATION
• TRANSPIRATION

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What follows evaporation during the water cycle? How does this occur?

• Water evaporates into water vapor
• Water vapor condenses and forms a  cloud
• Water precipitates to the ground
• Water runs down into the hydrosphere

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

• condensation
• evaporation
• sublimation
• transpiration

Precipitation occurs because 

• the droplets evaporate in the air
• the droplets are too light for the air to hold
• the droplets are too heavy for the air to hold

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What is the energy source for the water cycle?

• the sun
• the earth
• water
• the moon

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Which is the opposite of condensation?

• runoff
• evaporation
• precipitation
• transpiration

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Rain, sleet, snow, and hail are all forms of _____.

• Percolation
• Evaporation
• Condensation
• Precipitation

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