NEW
Font size
WorksheetsScience Chapter 7,8, and 9 test
Total questions: 28
Worksheet time: 14mins
Which is a weathering process most common in a cold, moist climate?
abrasion
deposition
frost action
cementation
How does weathering usually affect rocks?
Weathering causes the mineral fragments to become larger
Weathering makes rock harder
Weathering occurs when sediment changes to sedimentary rocks
Weathering weakens rock so it can be carried away
Which statement best describes physical weathering that occurs when ice forms within cracks in rocks?
Physical weathering occurs when new minerals form
Cracks increase in size because water expands as it freezes
Cracks grow only because chemical reactions between water and rock dissolve the rock
Physical weathering is most common in regions with warm, humid climates
Which rock most quickly forms new compounds when it is exposed to air polluted with acids
gneiss
limestone
granite
schist
As rock is broken apart by physical weathering processes
its soil production decreases
its total surface area increases
new minerals form in the rock material
the mass of the rock increases
Why does fine powder react more quickly with the acid
Grinding changes the chemical composition of marble
Fine particles of marble are less dense then coarser particles
The finely ground powder has a greater total surface area
The coarse chips have greater contact with the acid
Which event is an example of chemical weathering?
rocks falling off a steep cliff
feldspar in granite being crushed into clay-sized particles
acid rain reacting with limestone bedrock
water freezing in cracks in a roadside outcrop
Which of the following changes does not directly contribute to the formation of soil?
melting of rock to make molten magma
plant roots growing into cracks in the ground
acidic rainfall reacting with the mineral calcite
rocks split apart by water freezing in cracks
The lowest horizon of a residual soil that formed in place is composed primarily of
organic remains
roots and twigs
broken bedrocks
products of intense chemical weathering
What process creates angular rocks called ventifacts?
physical abrasion
chemical weathering
biological processes
melting of rock
What weathering is most common in an average yearly temperature of 5°C and precipitation of 45cm
moderate chemical weathering
very slight weathering
moderate chemical weathering with frost action
slight frost action
The amount of chemical weathering will increase if
air temperature and precipitation decreases
air temp decreases and precipitation increases
air temp increases and precipitation decreases
air temp and precipitation increase
How does soil form
erosion of organic material
melting followed by crystallization
weathering and biological activity
changes caused by heat and pressure deep within Earth
The largest particles that a stream deposits as it enters a pond are 0.008 cm in diameter. What is the minimum velocity of the stream at this location?
0.1 cm/s
0.5 cm/s
1.0 cm/s
5.0 cm/s
What process was primarily responsible for the formation of a delta?
glacial erosion
cementation of sediment
deposition of sediment
mass movement
Which event is the best example of erosion?
shale breaking apart as water freezes in its cracks
dissolving of limestone to make a cave
a pebble rolling along the bottom of a stream
bedrock crumbling to form a residual soil
A stream flowing at a velocity of 75 cm/s can transport
clay, only
pebbles,only
pebbles, sand, silt, and clay, only
boulders, cobbles,pebbles, sand, silt, and clay
Which process best describes the downward slide of some rock layers from a cliff
tidal changes
glacial erosion
mass movement
lava flow
When small particles settle through water faster than large particles, the small particles are
lighter in color
less rounded
better sorted
more dense
Which sediment size will be deposited if the stream velocity decreases from 300 to 200 cm/s
cobbles
sand
silt
clay
The particles of sediment at the top of a single layer of graded bedding are usually those that are
most dense, most rounded, and smallest
least dense, most flattened, and smallest
most dense, most rounded, and largest
least dense, most flattened, and largest
Which condition would cause surface runoff to increase in a particular location?
covering a dirt parking area with pavement
reducing the gradient of a steep hill
planting grasses and shrubs on a hillside
having a decrease in the annual rainfall
A stream bank is steeper on the outside of a meander because the water there is flowing
slower, causing deposition
faster, causing deposition
slower, causing erosion
faster, causing erosion
What unit is used to measure the discharge volume of the stream?
kilometer per hour
cubic meters per second
centimeters per minute
meters per square meter
Why are streams and rivers with the features of their watersheds called systems?
All streams and rivers are the same size
Streams and rivers form straight channels
Different part contribute to the same outcome
The features of one stream system are not found in other stream systems
Which river is a tributary of the Hudson River?
Mohawk River
Susquehanna River
Delaware River
Genesee River
How can the stream table be changed to increase the amount of sediment transported by the stream?
decrease the temperature of the sediment
decrease the slope of the stream
increase the size of the sedimentary particles
increase the rate of the water flow
For most streams, as you travel from the source of the stream toward the mouth, the
gradient increases
discharge volume decreases
floodplain becomes wider
force of gravity becomes weaker
