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243 Cards in this Set
- Front
- Back
Geology
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The Study of solid earth
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Astonomy
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The study of all physical things beyond earth |
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Environmental Sciences
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The study of the Earth's environment and resources and the effects human activities on earths land, air, water, and other living things.
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Oceanography
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the study of the ocean
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SI
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International system of the Units divided into multiples of ten
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King Henry Died By Drinking Chocolate Milk
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Kilo=1,000
Hecto= 100 Deca= 10 Base= 0 Meter-liter-or gram Deci= 1/10 Centi= 1/100 Milli= 1/1,000 |
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Meter
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Basic unit of SI for measuring lenght
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Volume
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the amount of space something occupies or amount of space something contains. Usually measured in liters with a graduated cylinder
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Mass
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the amount mater a substance contains
measured by grams |
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The Scientific Method
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Question, Research, Statement, Test, Conclusion, Communicate, Restate Hypothesis, and retest if needed
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Tom, Said My Tummy Is Empty
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Earth Layers stating closet to the earth
Troposphere, Stratosphere, Mesosphere, Thermosphere, Ionosphere, and Exosphere |
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Thermoshere
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Hottest layer, aurora borealis
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Ionosphere
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electrically charged particles, starts in the mesosphere goes through the exosphere
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Expsphere
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Last layer, the least dense and where satellites orbit
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Troposphere
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densest, all weather is in the layer, we live in this layer
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Stratosphere
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ozone layer, and jet stream
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Mesosphere
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The coldest layer, protects the from meteors
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What is Wind?
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the movement of air and it is created by difference in pressure. (H-->L caused by uneven heating of earths surface)
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What are the sates of water?
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Solid= ice snow
Liquid= rain gas= water vapor, steam |
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What are the layers of the earth? (define them)
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Crust- the outer most coolest and thinnest layer
Mantle- between the crust and the core the thickest layer Inner and outer core- the most dense and hottest layers outer core- liquid inner core- solid |
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The increase in the volume of matter with increasing temperature is called?
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expansion
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At the sametemperature and pressure, is moist airmore dense or less dense than dry air?
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Less dense!
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As the depth increases the?
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Temperature and density increase
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The Lithosphere is?
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the upper part of the crust and is of different composition under the land as opposed to the ocean floor
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The Mantle consist of?
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hot rock- semi-liquid consistency, it slowly moves or flows
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The outer core can be referred to as
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molten
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Convection currents
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Are created from heat from the mantle and core
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What does "We Eat Dead Cows Mm Mm Cow Steak" Refer to?
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The Rock Cycle We= WeatheringEat= Erosion Dead= Deposition Cows-= Compaction and cementation Mm= metamorphosis Mm= melting Cow= cooling Steak= solidifying |
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Weathering
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the breakdown of rock due to rain, wind, ice, sunlight, and plants.
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Eriosion
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the transport of fragments of rock by water, wind, ice, or gravity.
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crystal
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solid in which the atoms are arranged in an orderly, repeating pattern.
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(rocks) hardness
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measure of how easily a mineral can be scratched.
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luster
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property of metals and alloys that describes having a shiny appearance or reflecting light.
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streak (r0cks)
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color of a mineral when it is in powder form.
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Igneous rock
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rock formed from the cooling of molten rock; can be extrusive or intrusive depending on if it cooled outside (extrusive) or inside (intrusive) the earth.
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liquid rock that has erupted onto Earth's surface.
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Lava
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Magma
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liquid rock below Earth's surface.
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Metamorphic rock
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rock that has been changed by heat and pressure
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Sediment
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small pieces that have been transported to a different location
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Sedimentary rock
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rock formed from sediments (clastic), plant or animal remains (organic), or chemical precipitates (chemical).
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Granite
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A usually light colored intrusive igneous rock that is found in continental crust
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gneiss
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A metamorphic rock that has ribbon like layers. It was made from other rocks that have been squeezed and heated a long time in the Earth.
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shale
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A sedimentary rock formed by the deposition of successive layers of clay.
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To be a mineral a substance must be
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naturally occurring solid inorganic crystal structure
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Naturally Occurring
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formed by natural processes
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Inorganic
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not a part of living things.
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mineral
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A natural solid that can form by inorganic things and that has a crystal structure
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How are minerals identified?
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Color,Luster,Streak,Hardness,Density,Crystal Structure,Cleavage, and Fracture
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Salt Water
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water that contains a high amount of salt - more dense than fresh water
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Freshwater
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water that living things need - very little salt
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Water covers about ______% of the Earth's surface
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71%
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About ______% of Earth's water is freshwater
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3%
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97% of Earth's water is found
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in the oceans
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The amount of freshwater "locked up" in glaciers and ice sheets
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2/3
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Salt water comes from -
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the weathering of rocks that releases salt into rivers and streams and then flow into the oceans
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Water cycle
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the movement of water from Earth's surface and crust to the atmosphere and back again
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Evaporate
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Changing from a liquid to a gaseous state by removing heat (i.e., boiling water)
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Condense
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changing from a gaseous to a liquid state by removing heat (i.e., steam on a mirror after you take a shower)
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Cloud
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floating group of liquid water droplets
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Precipitation
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water that falls from clouds to earth's surface as rain, sleet, snow, and hail
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Transpiration
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release of water vapor to the atmosphere by plant leaves
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Relative humidity
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tells you how close air is to its maximum humidity; measured as percent
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Dew point
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temperature at which air's relative humidity is 100%
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Cirrus clouds
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thin and wispy - forms high in the atmosphere and made of ice; appears in fair weather, but can also indicate approaching bad weather
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Stratus clouds
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forms in layers like a blanket - brings a lot of rain
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Cumulus clouds
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large, white, puffy cotton-like shape - indicates fair weather
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Nimbus clouds (cumulonimbus)
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dark storm clouds - indicators of rain, sleet, snow, or hail
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Continental shelf
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gently sloping shelf of land extending from the shoreline to the continental edge
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Continental slope
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sharp underwater hill that connects the continental slope to the ocean floor
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Continental rise
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gently sloping hill that connects the continental slope to the ocean floor
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Abyssal Plain
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flat, smooth part of the deep ocean floor
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Ocean trenches
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valleys cut deep into the ocean floor
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Marianas Trench is the?
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deepest trench that has been found
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Salinity
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the measure of how much salt is in a solution
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Estuary
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area where a river meets an ocean
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Current
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constant moving of ocean water; rivers of moving water within the ocean
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Surface currents
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currents that are located close to the surface of the ocean - usually warm currents
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Deep ocean currents
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located deep under the ocean - usually cold water currents
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Trough
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lowest part of a wave
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Crest
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highest part of a wave
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Wave height
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vertical distance between a wave crest and a wave trough
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Wave length
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horizontal distance between two consecutive crests or troughs
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High tide
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when the water along the shore is at its highest level
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Low tide
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when the water along a shore is at its lowest level
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Uniformitarianism
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Is the idea that the geologic processes that operate today also operated in the past.
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Humus
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rich, dark organic material formed by decay of vegetable matter, essential to soil's fertility
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Fertility
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A measure of how well soil supports plant growth.
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Loam
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A mixture of gravel, sand, silt, clay, and organic matter
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Soil Horizon
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The layer of soil that differs in color and texture from the layers above or below it.
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topsoil
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Mixture of humus, clay, and other minerals that forms the crumbly, topmost layer of soil.
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subsoil
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The layer of soil beneath the topsoil that contains mostly clay and other minerals.B horizon
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An organism that breaks down wastes and dead organisms
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Decomposer
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sod
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A thick mass of grass,roots, and soil
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Dust bowl
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drought ruined Great Plains crops. bad farming practices and high winds blew away millions of tons of dry topsoil and turned farms into dust
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Soil conservation
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a method to maintain the fertility of the soil by protecting the soil from erosion and nutrient loss
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conservation plowing
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Soil conservation method in which the dead stalks from the previous year's crop are left in the ground to hold the soil in place.
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crop rotation
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Planting different crops at different times to avoid nutrient depletion
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Wegener's Hypothesis
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the continental drift
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Continental drift
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hypothesis that maintained that the Earth was once a super-continent that divided and slowly drifted a part.
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Pangaea
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(plate tectonics) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland
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Alfred Wegner's evidence of Continental drift
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Matching geological, fossil, climate, and rock signatures on different continent
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In the 1900's scientist used _____ to map the mid ocean-ridge
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Sonar
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In sea floor spreading where does molten material rise from
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Molten material forms new rock along the mid-ocean ridge.
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Sea floor spreading
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Seafloor spreading occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away...
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What occurs at trenches?
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In a process taking tens of millions of years, part of the ocean floor sinks back into the mantle at deep-ocean trenches.
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convergent boundary
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A tectonic plate boundary where two plates collide, come together, or crash into each other.
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the portion of Earth's crust that is usually below the oceans and not associated with continental areas, thinner and higher in density that continental crust and basaltic rather than granitic in composition
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Oceanic crust
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Why is old oceanic crust more dense?
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it's cooler
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subduction
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A geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate
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Where is the oldest part of the oceans floor
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Farthest away from the faults
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Whats affects the size of the wave?
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1) strength (speed) of the wind
2) length of time the wind blows 3) the distance the wind blows across the water |
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What happens to wave height and wave length when a wave approaches the shore?
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Wave height increases; wave length decreases
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What are 3 causes for a tsunami?
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1) Earthquakes [main cause]
2) Underwater landslides 3) underwater volcanoes |
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What causes tides?
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Gravitational pull of the moon
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A tide with the LEAST difference between low and high tide is a __________
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Neap tide
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What causes surface currents?
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Global winds created by the unequal heating of the Earth's surface
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The gravitational pull that the moon exerts on Earth is the main cause of
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Tides
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Coriolis Effect
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Causes moving air and water to turn left in the southern hemisphere and turn right in the northern hemisphere due to Earth's rotation.
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What in ___ the ocean water causes deep currents
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Density
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What type of current affects the climate?
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Surface Currents
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Describe the movement of ocean water and waves.
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Water remains in the same location as energy travels through it
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What position are the Sun, Moon and Earth in when a spring tide occurs? Where will you find the tidal bulge?
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They are in a straight line. There will be a bulge closest to the moon and the opposite side of the moon.
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What position are the Sun Moon, and Earth in when a neap tide occurs? Where will you find the tidal bulge?
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They are in a 90 degree or right angle.There will be little tidal bulge
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A tide with the GREATEST difference between low and high tide is a
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Spring tide
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What does a spring tide look like?
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The sun, earth, and moon are in a straight line.
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What moon phases would you see a spring tide during?
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Full and New Moon
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Folded Mountains
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When rock layers are squeezed together and pushed upward. The Himalaya Mountains are a good example of this.
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Fault-block mountain
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Type of mountain formed when rocks on one side of a fault are forced upward and rocks on the other side are forced downward.
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Strike-slip mountain
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A type of mountain formed by stress between tectonic plates
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Synclines
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downward arching folds
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anticlines
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upward-arching folds (think ant hill)
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P waves
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Fast, body waves. Travel through any surface liquid or solid.
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S waves
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A type of seismic wave that moves the ground up and down or side to side
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Surface waves (Earthquakes)
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A type of seismic wave that forms when P waves and S waves reach Earth's surface, moving slower than P and S waves, but producing the most severe ground movements (can can big destruction)
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Explosive eruption in a volcano?
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eruption where there are hot debris, ash, and gas shooting into the air
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magma that is low in silica that produces thin running lava
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Quiet eruption in a volcano
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non-explosive
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A ________ eruption is very common and produces relatively calm lava flows.
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Acid rain
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Rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water
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How does soil form?
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soil forms as rock is broken down by weathering and mixes with other materials on the surface (it begins in the bedrock)
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Focus is?
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Point of the depth where the rocks ruptured to produce earthquakes; place where quake waves originate (under the Epicenter)
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What is a Fault line?
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A crack in earths outer crust along which movement takes place.
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Horizon A
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chiefly made of organic matter - humus- this layer is a darker color - soil is called topsoil (rocks are leached)
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Horizon B
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This layer is often called the subsoil. this is where clays and dissolved substances from horizon A collect. this layer contains less humus.
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Horizon C
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directly above solid bedrock; large weathered pieces of parent material
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The relative age of a rock is?
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its age compared to the age of other rocks
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Law of superposition
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The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.
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Trace fossil
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A type of fossil that provides evidence of the activities of ancient organisms.
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How can Geologist obtain evidence about the earths interior?
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they have used two methods direct and indirect. seismic waves are the forces produced when earthquakes occur.from rocks from deep inside earth they can give inferences about conditions deep inside earth. they also record the seismic waves and record how dast they travel through Earth this is an indirect method
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What is a earthquake?
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Shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity
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This is a type of fossil consisting of an extremely thin coating of carbon on rock.
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carbon film fossil
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a fossil in which minerals replace all or part of an organism
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petrified fossil
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What is a fossil that is used to establish the age of a rock layer because the fossil was distinct, abundant, and widespread and the species that formed that fossil existed for only a short span of geologic time.
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Index Fossil
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shield volcano
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A low, flat, gently sloping volcano built from many flows of fluid, low-viscosity basaltic lava (quiet)
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cinder cone volcano
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A small, steeply sloped volcano that forms from moderately explosive eruptions of pyroclastic material
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dormant means
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inactive
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Which Type of planet will have a higher overall density?
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one that forms close to the sun
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Which process releases the energy?
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nuclear fusion
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Which planet has the shortest period of revolution?
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Mercury
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Revolution
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Earth's yearlong elliptical orbit around the sun
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What is the term for speed of gas molecules?
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Temperture
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Which of the following objects is least likely to have a spherical shape?
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Comet
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A planet with a large _____ has a long period of revolution?
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orbit
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What is nebula?
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A large cloud of dust and gas in spacean immense cloud of gas (mainly hydrogen) and dust in interstellar space
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Which of the following helps form Nebula?
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Gravity
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Pressure keeps nebula from collapsing on itself.
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true
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Do all planets rotate in the same direction?
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NO
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The spinning of the earth on its axis is called?
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rotation
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The motion of the earth traveling around the sun is called?
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revolution
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One Astronomical Unit is a
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A.U 150km the distance between the earth and the sun
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Kepler's 3d law of motion states that by knowing the planets period of revolution?
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the planets distance from the sun can be calculated
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Kepler's second law of motion states?
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Planets travel faster when they are closer to the sun.
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convective zone
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a region of the sun where gases circulate in convection currents, bringing the sun's energy to the surface
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A gaseous layer of the sun's atmosphere (extending from the photosphere to the corona) that is visible during a total eclipse of the sun is a?
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Chromosphere
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The core is where?
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The sun's energy is produced
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energy from the sun takes ____ to get to earth
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8.3 minutes
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The speed of light
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186,000 miles per second
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How many planets can be in the same orbit around the sun?
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ONE
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The curved path of a celestial object or spacecraft around a star, planet, or moon, esp. a periodic elliptical revolution
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is called Orbit
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The inner layer of the sun's atmosphere is?
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Photosphere
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a very dense region of the sun in which the atoms are so closely packed that light can take millions of years to pass through
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radiative zone
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ellipse
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A elongated circle, or oval shape, the shape of the planets orbit.
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In a heliocentric system, the earth revolves around the?
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Sun
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Earth has seasons because?
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its axis is tilted as it moves around the sun
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The geocentric theory was proposed by?
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Ptolemy
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If the earth rotated faster what would happen?
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days would come shorter
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In the southern Hemisphere, summer solstice occurs when?
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the sun is farthest south
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how long does it take the moon to orbit the earth?
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28 days of one month
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When so the longest days occur?
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summer solstice
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Copernicus believed?
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Heliocentric theory
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the moons phases are?
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New (also called the Dark Moon) - not visible
Waxing Crescent First Quarter - commonly called a "half moon" Waxing Gibbous Full - we can see the entire illuminated portion of the moon Waning Gibbous Third Quarter - another "half moon", but the illuminated part is opposite of the First Quarter Waning Crescent New - back to the beginning |
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How many days are there in between the seasons?
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90
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Lunar eclipse
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Earth blocks sunlight from reaching the moon
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Hubble's theory
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The observation that the farther away a galaxy is, the faster it is moving away.
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What is the name of our Galaxy
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the Milky Way
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Sun
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a star that is the source of light and heat for the planets in the solar system. It is 93,000,000 miles from the Earth.
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Mercury
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the closest planet to the Sun, very cold on one side and very hot on the other, smallest planet, and no moons.
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Venus
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the 2nd planet from Sun, covered with volcanoes, no moon, hottest planet, and rotates very slowly and backwards.
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Earth
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the 3rd planet from Sun. Has one moon, orbits the sun in 365 days and one rotation in 24 hours, and life exists on Planet Earth.
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Mars
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the 4th planet from Sun. Called Red planet because red color caused by iron in the crust that has rusted, has polar ice caps and 1/2 the size of Earth.
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Jupiter
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the 5th planet from Sun. Has the most moons, largest planet, gas giant and has a large red spot.
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Saturn
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the 6th planet from Sun. Spectacular rings made mostly of ice and frosted rock and gas giant made mostly of hydrogen gas.
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Uranus
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the 7th planet from Sun. rotates on its side, blue green color and gas giant.
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Neptune
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the 8th planet from Sun. Another gas giant and blue color due to Methane gas, has the highest winds in solar system, and rotates counterclockwise.
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Since 2006, no longer termed planet, but now called "Dwarf Planet" who am I?
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Pluto
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Huge group of single stars, star systems, star clusters, dust, & gas bound together by gravity
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Galaxy
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Inner Planets
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Small, rocky planets that orbit closest to the sun including Mercury, Venus, Earth, & Mars
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Jupiter, Saturn, Uranus, & Neptune. Called Gas Giants.
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Outer Planets
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Moon is a?
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a star that revolves around a planet
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Newton is known for?
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Gravity
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Renewable Energy
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Energy from a source that is replenished quickly enough that it will not be used up faster than it can be produced.
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Plant material, manure, and any other organic matter that is used as an energy source is...
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Biomass Fuel
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The energy generated from heat within Earth.
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Geothermal Energy
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As water flows across the land, the energy in its movement can be used to generate electricity. Accounts for 20 percent of the worlds electricity.
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Hydroelectric Energy
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Means saving energy
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Energy Conservation
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Produces electricity chemically by combining hydrogen fuel with oxygen from the air.
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Fuel Cell
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energy sources that are still in development are called?
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Alternative Energy
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The energy generated from heat within Earth is called?
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Geothermal Energy
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A station in which fuel is burned and the heat produced is used to boil water. The steam created is then used to turn a turbine, which turns a generator. When the generator is turned, electricity is generated.FUEL -to- HEAT -to- STEAM -to- TURBINE -to- GENERATOR -to- ELECTRICITY
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Power Stations
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Fossil fuel: Burning fossil fuels creates waste products that can act as pollutants. Examples: Carbon dioxide, sulfur dioxide, nitric oxides, ash.Nuclear: Nuclear power stations produce radioactive waste.
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Fossil Fuel And Nuclear Waste
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Non-Renewable Energy: How Long It Will Last
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Non-renewable resources will eventually run out.
Type of Fuel and Time Until Reserves Run Out: Natural gas, 25-30 yearsOil, about 75 yearsCoal, about 300 yearsNuclear power, thousands of years |
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Pros and Cons of Fossil Fuels
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Advantages:-readily available-easily transported-low fuel cost-low building costs-short start-up times Disadvantages:-non-renewable-acid rain-greenhouse effect-inefficient
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Non-Renewable Forms of Energy (and Definitions)
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Non-Renewable:-Nuclear: Electricity created by burning fossil fuels for energy. Nuclear power plants convert the energy released from the nucleus of an atom through nuclear fission.-Coal: Generates electricity by being burned.-Natural Gas: Generates electricity by being burned.-Oil: Generates electricity by being burned.
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tool that measures air pressure
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barometer
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polar (P)
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source region, formed in the polar regions, cold air
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tropical (T)
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source region, formed in the Tropics, warm air
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maritime (m)
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source region, formed over water, wet air
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maritime polar air mass which has the characteristics of cold, wet air (example: from Northern Pacific or Atlantic) is written as?
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MP
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large body of air with the same temperature and moisture throughout
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Air mass
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boundary between two air masses
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front (frontal boundary)
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A cold front is?
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forms when a cold air mass moves under a warm air mass-brings thunderstorms, heavy rain, or snow
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A warm front is?
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forms when warm air replaces cold air, bringing drizzly rain and warm temperatures
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occluded front forms?
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forms when a warm air mass is caught between two colder air masses-brings cool tempeatures and large amounts of rain and snow
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stationary front Forms when?
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a cold air mass meets a warm air mass but both masses do not have enough force to lift the warm over the cold air mass-brings many days of cloudy, wet weather
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winds that blow mainly from one direction during a given period are called?
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prevailing wind
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the distance north or south from the equator; expressed in degrees is?
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latitude
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the sound caused by the rapid expansion of air along an electrical strike is called?
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Thunder
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the rotation of air around a high pressure center with winds that spiral out (brings clear weather) is called?
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anticyclone
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a gradual increase in average global temperature is
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Global warming
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prevailing winds that blow from west to east between 30 and 60 degrees latitude in both hemispheres are called?
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westerlies
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prevailing winds that blow from east to west from 30° latitude to the equator in both hemispheres are called?
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Trade winds
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inertia is?
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tendency of an object to resist change in motion
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The law of inertia
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Newton 1st law
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the distance between a wave's midpoint and its crest or trough is the?
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amplitude
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