Percolation won't happen if the rock is....
impermeable
dry
dissolved
permeable
What percent of the Earth's water can you drink if you filtered it?
3% about!
Define tributary:
a stream t hat flows into a river
How must you dig a well??
Well below the water table.... or it will run dry!
What number represents RUNOFF?
5 or 6 :*) (not 7 haha)
How do you describe a MATURE river?
has few waterfalls, slower, wider, more turns
Define DIVIDE, as in Continental Divide
an area of higher ground between watersheds where the water will drain from
What number represents evaporation?
8
How does a youthful river differ from an old river for each term: straightness, speed, gradient
Young rivers: are straight, fast and steep.
Which number represents condensation?
2
What does the word POROSITY mean?
The amount of PORES or space that exists btwn rocks in an aquifer.
Define EROSION:
The process of carrying and moving soil & sediment from one place to another
Which one helps to drain a watershed area?
sewage treatment plant
alluvial plain
septic tanks
surrounding water systems like rivers and lakes
What does permeability mean in reference to aquifers?
Allowing water to flow through the rock
List the 3 factors that affect stream/river erosion:
Load, Discharge & Gradient!
Which number points to precipitation?
3
What powers the water cycle?
the SUN!
What is the definition of an AQUIFER?
storage and flow of underground water
Between what two areas is the water table found?
The zone of AERATION and SATURATION
When the water table gets BELOW the level of a cave, it could form a...
SINKHOLE
What does a youthful river have that a mature river doesn't?
WATERFALLS! FAST MOVING WATER!
Which number points to percolation or infiltration?
4