Earth Science Today GEOS 170
- Fall 2008
Exams and Review
Review - lecture quiz 1 - Friday
September 19th
Format - 50 pts
10 - 15 short answer questions
25 - 30 multiple choice
1 - 3 simple sketches
Topics Covered On Exam
What is Science
:
Earth Systems
Atoms and Elements
- What is a mineral?
The Rock Cycle &
Rocks
Review questions
- Why is Earth Science important?
- What is the difference between
a hypothesis and a theory?
- What is a mineral?
- Why do minerals have distinct physical properties?
- What allows us to recognize/identify different minerals?
- What is a rock and what are the three major categories?
- What are the two characteristics of rocks that geologists examine in order
to determine the processes and history recorded in the rock?
- What are some of the differences between mafic and felsic silicate minerals?
- What is the rock cycle?
- Where do igneous rocks form and what determines their texture?
- How does loose sediment become sedimentary rock?
- What are the four parts of the Earth System, and do they interact?
- Why are silicate minerals the most common minerals?
- What does the crystal size of an igneous rock tell us about the origin
of the rock?
- Why do the three major rock types have different properties, and what are
a few of these properties?
- What are the two ways to melt rocks to produce magma? Where does the heat
come from?
- Why are theories not considered to be absolute truths (why do theories
change)?
- The source of energy for internal earth processes is the internal heat
engine. What is the source of energy that powers surface processes?
- Why are controversial theories some of the strongest scientific theories?
- Why are the ocean basins situated at lower elevations than the continents?
- What are the layers of earth? Also, what are some of the differences between
the layers?
- What are the two properties of an igneous rock which allow us to determine
information about its origins
- What type of information can geologists read from sedimentary rocks?
- What are the four agents that can transport sediments across the surface
of the earth?
- What are the two types of weathering, and where on earth is weathering
generally more intense?
- What are the final two steps for converting sediment into sedimentary rock?
- What are the three layers that make up the internal structure of earth?
- If you apply too much heat to a metamorphic rock what does it become?
- How are the textures of sedimentary rocks different from igneous rocks?
- How does heat and pressure influence the texture of Metamorphic rocks?
- What is sediment?
check back again as I will
be adding questions.......Until
Wed. Sept. 17th
e-mail me
leonardk@mnstate.edu if you have any problems
Review - lecture quiz 2 - Friday
October 24th
Format - 50 pts
10 - 15 short answer questions
25 - 30 multiple choice
1 - 3 simple sketches
Topics Covered On Exam
Plate
Tectonics - A scientific revolution
Plate
Tectonics - Mechanics & Boundaries
Volcanoes -
Types
Volcanoes -
Hazards and Predictions
Earthquakes - What are
they?
Earthquakes - Hazards
and Predictions
Seeing into the Earth
Geologic Time
Review questions
- Why was continental drift rejected?
- What are the three types of plate boundaries?
- Why do the plates move?
- Why do oceans occur where they do?
- At what type of plate boundary
do very large mountains form? Why?
- What is the driving force for
a volcanic eruption?
- Why are some volcanoes more explosive
than others?
- What are the two types of seismic
waves, and which type is most destructive?
- Why are magnatude scales more
commonly used to measure EQ strength than are intensity scales?
- What determines the amount of
damage that a particular earthquake will cause?
- How do scientists locate the
epicenter of earthquakes?
- Why do seismic waves travel through
some earth materials with higher velocities and through some materials with
lower velocities?
- What is the difference between
absolute and relative geologic time?
- What aspect of a volcanic eruption
can be hazardous to people 10’s of km away from the volcano?
- What causes the sudden release
of energy along a fault that results in an earthquake?
- What are the two types of seismic
body waves, and which type is transmitted only through solids?
- Volcanoes are most common at
which type of plate boundary?
- What are the two types of body
waves, and how do they move?
- What does the difference in arrival
times between P and S waves on a seismogram tell us about a particular earthquake?
- How do we know that the outer
core is a liquid?
- What two layers, which consist
of the outer part of the mantle and the crust, are most involved in plate
tectonics?
- Why is ocean crust subducted
beneath continental crust at convergent boundaries?
- Even though we have no direct
physical evidence from deep within the earth, how do we know so much about
the properties and composition of the earth’s interior?
- What causes the sudden release
in energy that results in an earthquake, and how is this energy transmitted
away from the focus of the quake?
- Why is the silica content of
magma significant for volcanic eruptions?
- Our methods of keeping track
of time (days, months, years, etc.) are based on what?
- How can a volcanic eruption change
climate ?
- What comes out of a volcano during
an eruption?
- How and where do stratovolcanoes
form?
- What is the greatest hazard associated
with stratovolcanoes, especially for people who live some distance from the
volcano?
- What are the two types of seismic
waves?
- What is a tsunami and how do
they form?
- What are the two frameworks of
geologic time?
- What is an unconformity?
- Why can’t sedimentary rocks
be used for radiometric dating (numerical time)?
- What criteria do geologists use
to interpret environments from rocks?
- What are the principles of relative
time?
- What is the geologic time scale?
check back again as I will be adding
questions until ..Wednesday Oct. 22
e-mail me
leonardk@mnstate.edu if you have any problems
Review - lecture quiz 3 - Monday,
November 24th
Format - 50 pts
10 - 15 short answer questions
25 - 30 multiple choice
1 - 3 simple sketches Topics Covered
On Exam
Geologic
Time
What is a fossil?
How do we know so
much about dinosaurs?
Origins
Distant Objects/Sun
& Earth/Phases of the Moon/Planetary Processes
Review questions
- What are the two frameworks of
geologic time?
- What is an unconformity?
- Why can’t sedimentary rocks
be used for radiometric dating (numerical time)?
- What criteria do geologists use
to interpret environments from rocks?
- What are the principles of relative
time?
- What is the geologic time scale?
- What is the 1/2 life of a radioactive
element?
- What are the three properties
of sedimentary rocks do we use to interpret the environments in which the
sediments in the rock were deposited?
- What is a fossil?
- What are the requirements for fossil preservation?
- What are the differences between how fossils and living organisms are classified?
- What types of information can we learn from dinosaur trackways?
- What is the Nebular Disk Hypothesis and what is the evidence for it?
- What the basic unit of measure between objects in space, and why do we use
it?
- Are the dinosaurs considered as an unsuccessful group because they went
extinct, and what distinguishes them from the rest of the reptiles?
- What is the most likely cause for the extinction of the dinosaurs?
- What are the two major groups of dinosaurs and how can we tell them apart?
- How do we know what dinosaurs ate, and list a few of the properties we will
probably never know about dinosaurs?
- Was T. rex a scavenger? Why or why not?
- What is the evidence for the Big Bang?
- What is the most common method for determining the distance from earth to
very distant objects in space?
- What types of information do trace fossils give us that body fossils do
not?
- How do we know what type of parents the dinosaurs were?
- Where did the nebular cloud of dust that became our solar system come from?
- How did the internal parts of earth become layered?
- How do we know what the environments in which the dinosaurs lived were like?
- What is solar insulation and how is it important to the seasons?
- Why isn’t our atmosphere blown away from solar winds?
- Where does the sun’s energy come from?
- Where does the energy in living communities on earth ultimately come from?
- What causes seasonality on Earth, and why is seasonality more extreme in
the northern hemisphere?
- What is the difference in the position of the Sun, the Earth, and the Moon
during a new moon and a full moon?
- What is and NEO and what impact can they have on the Earth system?
check
back again as I will be adding questions until ........
e-mail
me leonardk@mnstate.edu if you have
any problems
Final Exam
December 16 - Noon
Format - will include new material (since the last exam), plus comprehensive
material
50 - 75 multiple choice questions
New Topics
Dynamics of Weather
Review Questions - (new material
- use the questions above for the comprehensive part)
New questions:
- Which way do weather systems track across North America, and what is the
name of the regional storm system that mixes cold dry air from the north with
warm moist air from the south?
- Which produces more precipitation and why - a cold front or a warm front?
- Why does a hurricane form?
- What are the major differences between a hurricane and a tornado?
- How do tornadoes form?
- How do thunderstorms form?
- What causes lightning?
- What is the most common weather system in North America?
- Where does the energy in living communities on earth ultimately come from?
- Why is seasonality more noticable in the northern hemisphere than in the
southern hemisphere?
- Why is the earth heated unevenly?
- What is the difference between weather and climate?
- What factors influence temperature on earth?
- What is the atmosphere and what is it composed of?
- What are the 4 layers of the atmosphere, and what distinguishes each layer?
- Why do certain layers in the atmosphere show increasing temperature with
increasing elevation?
- What are the three physical states of water and what determines the state
that water is in?
- Why does water have a major influence on weather and climate?
- What is relative humidity, and what determines how much water vapor air
can hold?
- What is the difference between high and low pressure, and what type of weather
is associated with each?
- Why does the wind blow?
- What is climate and how is it characterized?
- In what climate zone does Fargo/Moorhead lie?
- How do geologists measure ancient climate?
Helpfull Hints: Questions will attempt to focus
on key concepts whenever possible, although with multiple choice questions you
will have to know a few details. Study your old exams and the questions
above, and you shouldn't have any problems. The key to taking these exams
is reading the questions carefully, plus knowing the material....
e-mail me
leonardk@mnstate.edu if you have any problems