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What portion of the Earth is covered in water?
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2/3
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WHy is the ocean important to us?
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WHat is science?
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The method of discovering reliable information to make a hypothesis and theory
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WHat are the 6 steps of the scientific method?
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Define latutude and longitude
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Latitude: measure distance from North to South
Longitude: meaure distance from East to West, also known as the great circles |
What are 4 methods used to study the sea floor?
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1. Cores
2. Submersibles 3. Echo sounding 4. Satellite |
Atoms are composed of what and where?
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Protons: nucleus
Neutrons: nucleus Electrons: outer rings surrounding the nucleus |
What is density stratification?
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The theory that states that more dense planets are closer to the sun and less dense planets are further away from the sun
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The Earth is composed of what 3 layers?
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Lithosphere: crust (thin dense oceanic, thick light continental)
Asthenosphere: mantle (upper and lower capable of flow) Core: inner and outer (solid inner, molten outer) |
WHat is the driving force of plate tectonics?
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Convection currents
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Name 7 evidences of plate tectonicsq
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1. continents fitting like a puzzle
2. correlating mountain ranges of sperated continents 3. fossil evidence of same species on diff. continent 4. Paleoclimate evidence 5. seismic evidence 6. Paleomagnetism 7.Hotspot migration |
How does the process of radioactive decay work?
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It is a process that measures the constant half lives of elements based on their rate of decay. This is used to date rocks. It is also a source of convection in the mantle that drives plate tectonics
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What are the types of plates and how are they different?
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Continental: thicker and lighter
Oceanic: thinner and denser |
Describe how a convergent plate boundary works and where you can find it
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A convergent plate boundary is where the denser plate will slide under then less dense plate and cause a subduction zone to form. This happens with either continental to continental, oceanic to oceanic, or oceanic to continental.
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Give an example of where you could find each type of convergent plate boundaries
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C to C: Himalayas
O to O: Japan and the Aleutian Islands O to C: Cascades and the Andes |