27.3 Flashcards
What percentage of water on Earth is salt?
97%
What percentage of water on Earth is freshwater?
3%
Where is the majority of freshwater found?
the majority of freshwater is found in glaciers.
Where is the smaller percentage of freshwater found?
1% of that freshwater is found in lakes, rivers, and groundwater
What is precipitation?
rain, snow, sleet, and hail
What is runoff?
water runs of the land surface
What is infiltration?
the process by which water enters Earth and becomes groundwater below the surface.
What is transpiration?
when plants release water vapor into the atmosphere through their leaves.
What is evaporation?
When water enters the atmosphere as water vapor
What is condensation?
water vapor collides with other water vapor
What is the water cycle?
where freshwater moves from the land to the atmosphere then back to the land.
What is an unsaturated zone for groundwater storage?
is a porous area where water easily passes though
What is a saturated zone for groundwater storage?
beneath the unsaturated zone, where water completely fills the pore space.
What is a water table?
the upper boundary of the saturated zone
What does it mean if sediment is permeable?
the more permeable it is the easier it is for water to pass through it
What is an aquifer?
a rock unit that can transfer water through its pore space
what is the name of the Great Plains Aquifer?
Ogallala Aquifer
How many states does the Great Plains Aquifer run though?
8 states
What are the names of the states that the Great Plains Aquifer runs through?
Nebraska, Colorado, Kansas ,Oklahoma, New Mexico, and Texas
What is an aquitard?
keeps water confined
How are water springs formed?
springs form where the water table naturally meets Earth’s surface.
What is an artesian well?
were we drill into a pressurized aquifer
What is a cone of depression?
its where the water flows in a direction down towards the well
