Which rock has been in a stream longer, and how do you know?
A, it is more rounded
What is the difference between erosion and deposition?
Erosion - takes it (movement)
Deposition - drops it
Draw a graph showing the relationship between sediment size (when sorted) and permeability.
(teacher will draw on board
What is weathering?
the breaking down of rocks
What type of weathering is the main cause of cave formation, and what rock type might it occur in?
chemical weathering, limestone (or dolostone)
Draw a graph showing the relationship between the size of sediments carried by a river and water velocity.
Which has a higher permeability - sorted or unsorted sediment?
sorted
Which has a lower porosity? Sorted or unsorted sediment?
unsorted sediment
Which rock layer shows the least resistance to weathering?
B
Why is sediment deposited on the inside of a river meander?
The water slows down, and can't carry the sediment anymore, so it drops it
Label the water cycle processes represented by A, B, & C.
A - water table
B - infiltration
C - groundwater
Draw a graph showing the relationship between sediment size (when sorted) and porosity.
What type of climate would you expect to see frost wedging in?
Cold & wet climate (ideally alternates between freezing & thawing)
How are mountain streams different than meandering plains rivers?
Mountain: straight(er), smaller, faster, larger sediment
Plains: curvy(er), larger, slower, smaller sediment
How will increasing the permeability of a surface affect runoff and infiltration at a location?
increase infiltration, decrease runoff
abrasion is a type of weathering causes by the repeated hitting of rocks over time
How would an increase in temperature and humidity affect chemical weathering?
chemical weathering would increase
Draw a river meander (curve). Label the locations where deposition and erosion occur, as well as where there are constructive and destructive processes.
(teacher can draw on board)
What could cause a rise in the water table?
increased precipitation, increased infiltration, etc.
Draw the most probable path of a river from X to Y and Y to Z.