Water Cycle

Approximately what percentage of Earth's water is fresh water?

• 97%
• 5%
• 50%
• 3%

Describe the Florida Everglades

• a bog
• a salt marsh
• a swamp
• a freshwater marsh

Water that fills the cracks and spaces in underground soil and rock layers

• salt water
• rainwater
• groundwater
• water vapor

As water moves slowly through a wetland, some waste materials settle out, some are absorbed by plants.  In this way, wetlands act as natural ....

• filters
• reservoir
• tributaries
• watershed

A river system is made up of a river and its

• sediments
• water vapor
• divides
• tributaries

The land that supplies water to a river system

• watershed
• divide
• filter
• wetlands

Streams and rivers that feed into a main river are called

• divides
• tributaries
• wetlands
• watershed

How do wetlands control flooding?

• providing natural water filtration
• absorbing water from heavy rains
• collecting water behind dams
• releasing water quickly

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

• Condensation
• Evaporation
• Precipitation
• Transpiration

People can obtain groundwater by drilling a well...

• into an aquifer
• above the water table
• into the unsaturated zone
• into the impermeable layer