WorksheetsEEN Midterm Review Session 2
Total questions: 21
Worksheet time: 17mins
What are the 3 rock types? (Check all that apply)
igneous
metamorphic
continental
igneous
oceanic
What are the differences between oceanic and continental crust? Select all that are correct.
oceanic crust is thicker than continental crust
oceanic crust is thinner than continental crust
oceanic crust is older than continental crust
oceanic crust is younger than continental crust
Igneous rocks are formed when:
heat and pressure change the structure of the rock, but it is not melted
rock melts into magma and cools back into a new rock
weathered rock is compacted and cemented together
mass movements occur
intrusive rocks are formed when:
melted rock cools slowly on the inside of the earth. large crystals.
melted rock cools quickly on the outside of the earth. small/no crystals.
If cooling occurs rapidly in an igneous rock, what happens to crystal size?
two giant crystals
medium crystals
large crystals
small/no crystals
What is true about non-foliated rocks?
they have layers
they do not have layers
marble is a non-foliated rock
gneiss is a non-foliated rock
Regional metamorphism:
includes any metamorphic process that occurs over a large region. rocks are pressurized to create layers (foliated).
occurs because heat comes from magma that has moved into the upper part of the crust. rocks are typically non-foliated.
Select all the TRUE statements about sedimentary rock subtypes:
organic rocks are formed when minerals dissolve out of water
clastic rocks are composed of weathered bits of rocks and minerals
chemical rocks are formed by fossils or organic matter within the rock layers
In which type of rock will you find fossils?
igneous
metamorphic
sedimentary
Select the correct steps to form sedimentary rocks.
Burial/Compaction/Lithification, Weathering, Erosion, Transport, Deposition
Burial/Compaction/Lithification, Deposition, Transport, Erosion, Weathering
Weathering, Erosion, Transport, Deposition, Burial/Compaction/Lithification
Weathering, Erosion, Burial/Compaction/Lithification, Transport, Deposition
Select the TRUE statements about CHEMICAL WEATHERING:
requires the transformation of rock into one or more new compounds.
requires physical forces to break rocks into smaller pieces.
an example is WATER
an example is WIND
There are many kinds of mechanical weathering. Select all of the examples below that are mechanical weathering.
frost wedging
Oxygen reacts with the metals to produce oxide (rust)
exfoliation/unloading
plants & animals burrow through the rock
What is the correct order of soil profiles, starting from the top?
bedrock, subsoil, topsoil, weathered rock
topsoil, subsoil, weathered rock, bedrock
topsoil, bedrock, weathered rock, subsoil
subsoil, topsoil, weathered rock, bedrock
The four major components of soil are: (check all that apply)
water
humus/organic matter
worms
air
mineral matter
What 3 things contribute the most to the rate of soil EROSION?
mechanical weathering, chemical weathering, and climate
temperature, humidity, and parent material
logging, tilling, and habitat restoration
logging, tilling, and construction
What are some things humans have done to increase erosion?
deforestation
forest restoration
building wetlands
creating wildlife refuges
How much clay is in sample A?
40%
60%
20%
Some triggers of mass movements include saturation of surface materials with water, oversteeping of slopes, earthquakes, and _____________.
groundwater subsidence
tilling
removal of vegetation
construction
During which season would you expect to see mass movements, and why?
fall, when the leaves fall
summer, when hurricanes hit the coast
spring, when there is heavy rain and rapid snowmelt
winter, when snow accumulates
Slumps are:
a block of material moves suddenly along a flat, inclined surface
the downward movement of a block of material along a curved surface
rocks or rock fragments fall freely through the air
the slow movement of material that only travels a few centimeters a year
Flows are:
mass movements of material containing a large amount of water, which move downslope as a thick fluid
a block of material moves suddenly along a flat, inclined surface
rocks or rock fragments fall freely through the air
the slow movement of material that only travels a few centimeters a year
