Term
Name the layers of the Earth. |
|
Definition
Crust
Mantle
Outer Core
Inner Core |
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Term
Name the Compositional Layers of the Earth and their thickness. |
|
Definition
Continental crust 10-70km
Oceanic crust 5-7km
Mantle 2900km
Core 6306km |
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Term
Name the Mechanical Layers of the Earth. |
|
Definition
Lithosphere
Aesthenosphere
Mesosphere
Outer Core
Inner Core |
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Term
Describe the composition of each of the Earth’s layers. |
|
Definition
Crust: Rocky
Mantle: Plastic:
Mg – Magnesium, Fe – Iron, Al – Aluminum, Si – Silicon, O - Oxygen
Core: Liquid:
Fe – Iron, S – Sulfur
Inner Core:
Solid: -Fe – Iron
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Term
Describe the composition of oceanic crust. |
|
Definition
is composed entirely of basalt rocks. |
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Term
Describe the composition of Continental crust. |
|
Definition
is made primarily of less dense rock such as granite |
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Term
Describe the composition of the Earth’s Mantle layer |
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Definition
A less dense and much larger middle sphere is made of materials rich in iron, magnesium and calcium |
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Term
Describe the composition of the Earth’s core |
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Definition
a body of intensely hot iron and nickel |
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Term
Explain the interactions that take place between the different layers of the Earth (core and mantle and mantle, crust) |
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Definition
Within the Earth, irregular convection cells within the mantle transfer heat from the core to the surface of the planet. |
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Term
Explain the interactions that take place between the lithosphere and asthenosphere. |
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Definition
The asthenosphere is ductile and can be pushed and deformed like silly putty in response to the warmth of the Earth. These rocks actually flow, moving in response to the stresses placed upon them by the churning motions of the deep interior of the Earth. The flowing asthenosphere carries the lithosphere of the Earth, including the continents, on its back |
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Term
What is the energy source that drives the movement of the Earth’s plates? |
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Definition
Intense heat in the Earth’s core which causes molten rock in the asthenosphere to move. |
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Term
What is the difference between chemical and physical weathering? |
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Definition
Chemical occurs when chemical reactions dissolve the minerals in rock Mechanical is a physical process that breaks apart rock without changing it's chemical structure |
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Term
What is the difference between chemical and physical weathering? |
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Definition
Physical Weathering - disintegration of rocks and minerals by a physical or mechanical process.
Chemical Weathering - chemical alteration or decomposition of rocks and minerals. |
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Term
Give an example of physical weathering |
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Definition
Abrasion makes rocks with sharp or jagged edges smooth and round. If you have ever collected beach glass or cobbles from a stream, you have witnessed the work of abrasion. |
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Term
Give an example of chemical weathering |
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Definition
When iron rich minerals oxidize, they produce the familiar red color found in rust. |
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Term
What will occur when water and limestone interact? |
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Definition
When limestone interacts with underground water, the water dissolves the limestone to form karst topography in which the landscape is largely shaped by the dissolving action of water on carbonate bedrock. |
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Term
How is karst topography formed? |
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Definition
When the landscape is largely shaped by the dissolving action of water on carbonate bedrock. |
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Term
What causes the geological process, occurring over thousands of years, resulting in unusual surface and underground features ranging from sinkholes, vertical shafts, disappearing streams, and springs, to complex underground drainage systems and caves. |
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Definition
What happens when water and limestone interact? |
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Term
What will occur when water and limestone interact? |
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Definition
Limestone is primarily solid CaCO3 . All types of limestone begin with dissolved calcium carbonate, CaCO3, which is contained in most fresh water and in sea water.
Limestone Slowly Dissolves in Rain |
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Term
What are the primary agents of physical erosion and how do they change the surface of the Earth? |
|
Definition
Primary force is gravity, but gravity
acts in concert with running water.
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Term
The movement of weathered
material from the site of weathering.
Primary force is gravity, but gravity acts
in concert with running water. |
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Definition
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Term
Name several ways in which rock layers can be dated. |
|
Definition
Relative Dating
and
Absolute Dating
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Term
Relative Dating - laws and principles |
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Definition
•Law of Superposition- states that in an undeformed sequence of sedimentary rocks, each bed is older that the one above it and younger than the one below it.
•Principle of Original Horizontality – means that layers of sediments are generally deposited in a horizontal position. |
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Term
Absolute Dating - how is this done? |
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Definition
Radiometric dating- is based on the constant rate of decay of radioactive materials. Radioactive materials are isotopes that are unstable; the radioactivity refers to the particles and energy released by these materials as they revert to stable isotopes |
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Term
Describe the steps of the rock cycle and the types of rocks that are created during each process. |
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Definition
Igneous and Metamophic melting makes magma
Magma cooling makes Igneous Rock
Igneous, Metamorphic and Sedimentary Rocks weathering and erosion make sediments
Sediments, when compacted, make Sedimentary Rock
Igneous and Sedimentary rocks when faced with heat and pressure make Metamorphic Rock |
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Term
Explain Wegener’s theory of continental drift. |
|
Definition
The continents had once been joined to form a single supercontinent. |
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Term
What was the name of the supercontinent in Wegener's theory of continental drift? |
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Definition
Wegener called this supercontinent Pangea, meaning all land. |
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Term
What is the difference with Wegener’s theory of continental drift and the current theory of plate tectonics as compared to today's theory? |
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Definition
The main difference is that Wegener was not able to explain the mechanisms of plate movements |
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Term
What is the difference between Wegener’s theory of continental drift and the current theory of plate tectonics? |
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Definition
Wegener was not able to explain the mechanisms of plate movements, while today’s theory of plate tectonics states that the uppermost mantle along with the overlying crust, behaves as a strong, rigid layer. This layer is known as the asthenosphere. The unequal distribution of heat within the Earth causes the thermal convection in the mantle that ultimately drives the plates motion. |
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Term
What are the three Types of Tectonic Plate Boundary events of movement? |
|
Definition
Convergent
Plates move towards each other
Divergent
Plates move away from each other
Transform Boundaries
Plates move past each other |
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|
Term
Describe the convergent boundaries type of tectonic plate interaction. |
|
Definition
Oceanic Plates collide with continental plates
Continental Plates collide with other continental plates
Ocean Plates collide with other ocean plates |
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|
Term
Describe the Ocean-Continent Collision type of tectonic plate interaction. |
|
Definition
Ocean crust dips below continental (SUBDUCTION) due to the difference in density.
Effects = Trenches and Volcanic Arc |
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|
Term
Describe the Continent to Continent Converging type of tectonic plate interaction and the effects. |
|
Definition
The plates collide and get pushed upward, creating mountains.
Effects – Creates Complex Mountains
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|
Term
Explain the plate boundary event which form mountains within a land mass or continent such as The Himalayas. |
|
Definition
Continent to Continent Converging |
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|
Term
Describe the Ocean to Ocean Converging type of tectonic plate interaction and the effects. |
|
Definition
One oceanic plate is subducted under another.
Effects – Deep ocean trenches, Under water volcanoes, Chain of volcanic structure that become islands.
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|
|
Term
The Mariana Trench (which is below sea level) resluted from what type of tectonic plate interaction? |
|
Definition
Ocean to ocean convergence. |
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|
Term
What are the effects of a Divergent Boundary form of Tectonic Plate movement? |
|
Definition
1. New Crust
2. crust becomes wider
3. shallow earthquakes
4. extrusive volcanism
5. mid-ocean ridge system |
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|
Term
What is the Techtonic Plate Interaction that causes the Mid-Atlantic Ridge which divides the land mass with slowly increasing width in Iceland? |
|
Definition
The Divergent Boundary Plate Movement. |
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|
Term
What Techtonic Plate Interaction caused the continents to divide? |
|
Definition
The Divergent Boundary Movement |
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|
Term
Explain what happens in Techtonic Plate Interaction with TRANSFORM BOUNDARY movement. |
|
Definition
Two plates slide horizontally past each other along a surface called a "TRANSFORM FAULT". |
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|
Term
The interaction between the Pacific and North American Techtonic Plates in California is an example of which type of techtonic plate interaction? |
|
Definition
TRANSFORM BOUNDARY Interaction
(This type of boundary is often associated with earthquakes.) |
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|
Term
Explain how the process of erosion affects Florida beaches each year. |
|
Definition
The affects of wind and waves on beaches naturally erode the beaches. The waves move the sand into the ocean and the wind moves the sand to other locations. |
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|
Term
What actions could we take to prevent the erosion of Florida's shorelines? |
|
Definition
1. Add plants and vegetation to the seashore banks.
2. Reduce usage of beaches
3. Move sand fro the ocean and place it back at the shoreline to improve sand dune stability. |
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|
Term
What is the process of Karst Topography and the formation of underground caves in Florida? |
|
Definition
Groundwater weathers away the bedrock including limestone. |
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Term
What are the process that create and destroy Earth's crustal material.
Explain. |
|
Definition
1. Subduction - destroys the material
2. Volcanic Lava Cooling - Creates
3. Ocean Floor Spreading - Creates |
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|
Term
Where would the earth's crust be the oldest?
The newest?
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|
Definition
The Oldest crust would be located on either side of the spreading centers. |
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|
Term
Name and identify the features of the ocean floor. |
|
Definition
1. Continental shelf
2. Continental Slope
3. Mid ocean ridge
4. Volcano
5.trench
6.sea mount
7. abyssal plain |
|
|
Term
What percentages of which gases make up our atmosphere? |
|
Definition
1. 78% Nitorgen
2. 21% Oxygen
3. 1% Other |
|
|
Term
Which gases are most important to living organisms?
and why? |
|
Definition
Nitrogen: We need as protein which are made of amino acids for all living things.
Carbon Dioxide: We breath out CO2 and Plants take in CO2 for photosynthesis.
Oxygen: Plants make oxygen and we breath in oxygen. This makes us different from all other planets. |
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|
Term
What is the Greenhouse Effect? |
|
Definition
a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions |
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|
Term
What is the water cycle?
What is the energy source of the water cycle? |
|
Definition
The movement of earths water through earth.
The energy source is the sun. |
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|
Term
What is the carbon cycle? |
|
Definition
The circulation of carbon between earth and the atmosphere and back again. |
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|
Term
What are four ways carbon is added to the atmosphere? |
|
Definition
1. Burning off fossile fuels
2. Respiration
3. Deforestation (cutting down trees)
4. Volcanoes |
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|
Term
Name three ways carbon dioxide is removed from the atmosphere. |
|
Definition
1. Dissolving in oceans
2. photosynthesis
3. buried in Earth-fossil fuels are made |
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|
Term
What happens to the atmospheric temp when carbon dioxide increases?
Decreases? |
|
Definition
gets warmer
gets cooler
(greenhouse effect...) |
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|
Term
What are 3 causes of deep water ocean currents? |
|
Definition
Differences in density due to:
1. Temperature (colder is more dense)
2. Salinity (more salt is more dense)
Dense water from the poles sink down to the bottom.
Less dense, warm water stays on top. |
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|
Term
|
Definition
Any large system of rotating ocean currents, particularly those involved with large wind movements. They are caused by the Coriolis Effect. |
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|
Term
What causes the surfact currents? |
|
Definition
Wind (which is influenced by the Coriolis Effect) |
|
|
Term
|
Definition
The friction between air and water molecules. |
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|
Term
Describe the location of the Gulf Stream current. |
|
Definition
The gulf stream is a warm current that begins in the Gulf of Mexico and flows up the East coast of the US, and over to northern Europe. |
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|
Term
How does the Gulf Stream impact the climates of North America and northwestern Europe? |
|
Definition
It breings warm, humid air to the East Coast of the US and allows areas in Northern Europe to have a warmer, mild climate than they normally would have. |
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|
Term
List and give examples of three ways heat is transferred. |
|
Definition
1. Convection: The transfer of heat by the movement fluid
2. Conduction: The transfer of heat through matter by direct contact. Energy is transferred by collision of one molecule to another.
3. Radiation:The transfer of heat energy through space by electromagnetic waves. |
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|
Term
Give examples of each heat transfer. |
|
Definition
Conduction: Energy is transferred by direct contact like a Hot spoon because in boiling water.
Convection: Energy is transferred by the mass motion of molecules like circulation of hot and cool air in atmosphere
Radiation: Energy is transferred by electromagnetic radiation like feeling warmth of fire.
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|
Term
How does heat energy get from the sun to the earth? |
|
Definition
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|
Term
Why can't heat transfer from sun to earth by conduction or convection? |
|
Definition
Because there are no particles between the sun and the earth. |
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|
Term
Describe the role that conduction, convection and radiation play in the heating of Earth's atmosphere. |
|
Definition
1. Radiation: Energy moves from sun through space to earth. Some is absorbed or flected in our atmosphere.
2. Conduction: Heat from the earth is transfererred to the air above it.
3. Convection: WArm air rising in the atmosphere and cool air sinking. |
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|
Term
Give several examples of interactions between the atmosphere and hydrosphere. |
|
Definition
1. As water evaporates, it becomes part of the atmosphere
2. water vapor and cloud formation can influence the heating of the atmosphere
3. the water cycle. |
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|
Term
|
Definition
|
|
Term
Give several examples of interactions between the atmosphere and biosphere:
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|
Definition
1. Photosynthesis and respoiration can change the gases in the atmosphere
2. human activity add CO2 to atmosphere
3. Weather (expecially severe) has an effect on living things
4. the carbon cycle
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|
Term
Give several examples of interactions between the atmosphere and Geosphere |
|
Definition
1. The earth directly heats the atmosphere
2. Volcanic eruptions can add material and gases to the atmosphere
3. weather from atmosphere can affect the land surface by weathering and erosion |
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|
Term
What are the names of the layers of atmosphere elevations?
What are the temperature ranges of each? |
|
Definition
Thermosphere Hottest
Mesosphere coldest
Stratosphere ozone layer
Troposphere weather |
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|
Term
How do the climates of the northern and southern hemispheres vary and why? |
|
Definition
Unequal heating of land and sea cause pressure differences and can cause large amounts of precipitation (monsoons) during the summer months. This happens over Asia and to a lesser extent North Am. Since the southern hemisphere has less landmass these weather patterns do not occur. The southern hemisphere actually allows wind and ocean currents to travel continuously around the globe. this does not happen in the Northern Hemisphere due to the continents.
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Term
How does the Earth's rotation impact ocean and air currents? |
|
Definition
If the earth wasn't rotation, the global winds would be very simple. They would rise at the equator and move toward the poles in a straight line.
Since the Earth rotates the winds follow a much different pattern. The rotation causes the Coriolis Effect which deflects the winds from their original path. This causes the winds to curve. |
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Term
What are the four main types of air masses? |
|
Definition
!. Tropical - warm air masses with a low pressure.
2. Polar - cold, air masses with high pressure.
3. Maritime - form over the ocean and are very humid
4. Continental - form over land and are dry. |
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|
Term
What are the causes of stormy weather? |
|
Definition
Lift in the atmosphere
Low pressure systems
Frontal boundries |
|
|
Term
What are the causes for fair weather? |
|
Definition
Stable air. This is typically associated with high pressure (cold, sinking, air) |
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|
Term
How can wind speed and direction be predicted using a weather map |
|
Definition
Closely spaced isobars mean higher wind speeds due to rapid pressure changes
Low pressure will have winds moving toward the low
High pressure systems will have winds moving outward. |
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|
Term
What are the factors necessary to form a hurricane? |
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Definition
Ocean and air heat and moisture are necessary to form a hurricane |
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|
Term
Describe the structure of a hurricane |
|
Definition
Surface convergence of air, spiral rain bands, subsiding air in eye |
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|
Term
If the earth's average temperature increases (global warming), what is the impact on the incidences of hurricane formation? |
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Definition
The higher the average temperatures of the oceans, the more incidents of hurricane formation. |
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|
Term
What is the relationship between greenhouse gasses, global warming and global climate change? |
|
Definition
There is a direct relationship between all three. An increase in CO2 in the atmosphere causes an increase in all of them. |
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|
Term
How does changes in the Earth's Exosphere (very high up) influence climate on Earth? |
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Definition
An increase in CO2 (volcanos, burning fossil fules, respiration) would thin the Exosphere and make our climate warmer. |
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|
Term
How does changes in the Earth's Hydrosphere influence climate on Earth? |
|
Definition
An area with a lot of rain would cool the hydrosphere creating a cooler, more humid climate. |
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|
Term
How does changes in the Earth's Geosphere influence climate on Earth? |
|
Definition
A volcano erupting would add ash and CO2 into the air creating a warmer climate. |
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|
Term
How does changes in the Earth's Biosphere influence climate on Earth? |
|
Definition
Humans burning coal for electricity would add CO2 into the atmosphere and create a slow warming pattern. |
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|
Term
How Does changes in the Eartgh's Cryosphere influence climate on Earth? |
|
Definition
Global warming would cause ice to melt and temperatures to rise. |
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|
Term
Compare the influence of large land areas (continents) and large bodies of water (oceans) on weather and climate. |
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Definition
Areas near large bodies of water have a much smaller range of temperature than those located within a continent. |
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|
Term
Compare the influence of altitudes and latitude on weather and climate |
|
Definition
Latitude - the closer to the equator that you are located, the warmer the climate.
Elevation (altitude): As you rise higher in the troposphere temperature decreases.
Geographic Location: Areas near large bodies of water have a much smaller range of temperature than those located within a continent.
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|
Term
What is the difference between a problem statement and a hypothesis? |
|
Definition
Problem statement defines the problem that scientists are trying to solve.
A hypothesis is what scientists predict to be the outcome of an experiment. |
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Term
What is the difference between an independent (test) and a dependent (outcome) variable. |
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Definition
Independent (test) variable is what is changed
Dependent (outcome) variable is what is measured |
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Term
What is the difference between reliable data and replicable data? |
|
Definition
Data that is reliable is accurate and makes sense. More than one trial shows that the data is correct.
Data that is replicable is able to be obtained in multiple trials. This can be done more than once correctly. |
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|
Term
Explain the role of models in science. Give examples of the benefits and limitations of specific models. |
|
Definition
Models allow us to study and experiment on things that we may not otherwise be able to.
Eamples:
1. earth-sun-moon systems
2. model of the sun
3. center of the earth |
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Term
What is the difference between theories and laws - cite examples |
|
Definition
Both have evicence to back them up, however a law has been proven beyond a shadow of a doubt
Examples:
Theories: Theory of contintal drift, theory of plate tectonics, theory of evolution
Laws: Newtons law of motion, Law of superposition, law of horiziontality |
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Term
What are examples which show how scientific knowledge is durable, because it's open to change? |
|
Definition
Idea of global warming, Theory of continental drift-plate tectonics, Astronomy (pluto is or is not a planet) |
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|
Term
How many Km's are in one AU? |
|
Definition
1 AU is appx = to 150,000,000 km |
|
|
Term
How manu AU's are in a light year? |
|
Definition
63240 AU is appx = to 1 light year |
|
|
Term
How many light years are in 1 parsec? |
|
Definition
3.26 light years is = to appx 1 parsec |
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|
Term
Understand the HR diagram (slide 14) and be able to answer questions about what the diagram identifies with relation to planetary hear (in kelvin) and Luminosity. |
|
Definition
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|
Term
Understand the HR diagram (slide 15) and be able to answer questions about what the diagram identifies with the life cycle of stars. |
|
Definition
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|
Term
What does the tilt or axis of the earth or the revolution of the earth around the sun have to to with climates and temperatures? |
|
Definition
The parts of the earth that receive direct sunlight longer are hotter or warmer climates than those which do not. |
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|
Term
How are the season affected by direct or indirect sunlight? |
|
Definition
If you are receiving direct sunlight you are in summer, when you are in indirect sunlight, earth tilted away from sun, you are in winter. |
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|
Term
How are winter and summer affected by geographical location? |
|
Definition
If you are in the northern hemisphere and you are in summer, then the southern hemispheric locations are in winter.
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|
Term
How does the distance from the Earth to the Sun affect seasons? |
|
Definition
The distance from the Earth to the Sun has NO affect on seasons. |
|
|
Term
review slide 17 and 18 on seasons, moon phases equinox's |
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Definition
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|
Term
When the moon moves in a line directly between the earth and sun. This is called... |
|
Definition
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|
Term
In what moon phase does a solar eclipse happen? |
|
Definition
New moon phase (order is Sun, moon then earth) |
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|
Term
What happens when the moon moves within the earth's shadow. |
|
Definition
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|
Term
In what moon phase does a Lunar eclipse happen? |
|
Definition
Full moon phase (order is Sun, earth, moon) |
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|
Term
How are the phases of the moon related to the ocean tides we experience on Earth? |
|
Definition
Spring Tide: When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low.
Neap Tide: During the moon's quarter phases, the sun and moon work at right angles, causing the bulges to cancel each other. The result is a smaller difference between high and low tides. |
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