Weather Variables and Water Cycle

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

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

What is the energy source for the water cycle?

• the sun
• the earth
• water
• the moon

Which is the opposite of condensation?

• runoff
• evaporation
• precipitation
• transpiration

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

• Percolation
• Evaporation
• Condensation
• Precipitation

According to this diagram, what are two methods by which water on land (in lakes and streams) returns to the oceans? (Select TWO answers)

• Surface runoff

• Groundwater

• Evaporation

• Precipitation

According to this diagram, what are two methods by which water is converted to vapor? (Select TWO answers)

• Condensation

• Transpiration

• Evaporation

• Precipitation

True or False: The water cycle is a closed system, meaning no water enters from beyond the system nor leaves the system.

• True

• False

What part of the water cycle does this picture show?

• condensation
• precipitation
• evaporation

What is evaporation?

• The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
• The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
• The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.