9.3 - 9.5 Notes Flashcards
the amount of open space in soil (pore space)
porosity
the more cement between the particles the more or less pore space?
less pore space (porosity)
well sorted particles have more or less pore space (porosity) than unsorted soils
more pore space (porosity)
bedrock with more fractures or cracks has ____ pores than bedrock without many cracks
more
porosity is not affected by what
particle size
equal volumes of sorted sediment have
equal pore space
the ability of water to flow through a soil
permeability
the inability of water to flow
impermeable
permeability depends on
soil composition
more permeable, water flows easily from space to space, are what size particles
large particles
less permeable, it’s hard for water to find a path through the soil, are what sized particles
small particles
more permeable, plenty of open spaces that connect to each other are sorted or unsorted particles
sorted particles
less permeable, small particles fill up the spaces leaving little room for water to move are sorted or unsorted particles
unsorted particles
the amount, availability, and movement of groundwater depends largely on
permeability and porosity
as water permeates soil, some water molecules get stuck on the sediments and do not flow through. This is known as
retention
the ability of water to rise in small openings
capillarity
sorted large sediments and sorted small sediments have the same or different porosity
the same porosity
sorted particles have a higher or lower permeability
higher
does particle size affect porosity
no
as particle increases does permeability increase or decrease
it increases
the movement of water upward against gravity in small spaces
capillarity
sediments with smaller or larger spaces have more capillarity
smaller
porosity indicates
how much space is between the sediments
the seeping in of water into the soil to become groundwater
inflitration
the moving of liquid water on the surface of Earth
runoff
infiltration and runoff are
opposites
water that does not infiltrate the soil will
runoff into a larger body of water
as gradient decreases infiltration
increases
on a gentle slope there is
high infiltration low runoff
on a steep slope there is
low infiltration high runoff
infiltration and gradient have a
indirect relationship
gradient and runoff have a
direct relationship