Podcast
Questions and Answers
Which layer of the Earth is composed mostly of granite rock and has a density of 2.7 g/cm3?
Which layer of the Earth is composed mostly of granite rock and has a density of 2.7 g/cm3?
- Inner Core
- Mantle
- Crust (correct)
- Outer Core
What is the name of the supercontinent proposed by Alfred Wegener in 1915?
What is the name of the supercontinent proposed by Alfred Wegener in 1915?
- Gondwana
- Laurasia
- Rodinia
- Pangea (correct)
Which type of crust is denser and sinks underneath the less dense crust?
Which type of crust is denser and sinks underneath the less dense crust?
- Oceanic (correct)
- Mantle
- Outer Core
- Continental
What is the main factor that causes denser minerals to be pulled towards the Earth's core?
What is the main factor that causes denser minerals to be pulled towards the Earth's core?
True or false: Africa's west coast and South America's east coast fit together like a jigsaw puzzle?
True or false: Africa's west coast and South America's east coast fit together like a jigsaw puzzle?
True or false: Fossils of reptiles and plants were found on multiple continents?
True or false: Fossils of reptiles and plants were found on multiple continents?
True or false: Glacial evidence was found on South America, Africa/Madagascar, India, Antarctica, and Australia?
True or false: Glacial evidence was found on South America, Africa/Madagascar, India, Antarctica, and Australia?
Tectonic plates are large areas of Earth’s ______ that are in motion relative to one another
Tectonic plates are large areas of Earth’s ______ that are in motion relative to one another
Earthquakes are evidence that Earth is in constant ______
Earthquakes are evidence that Earth is in constant ______
3 types of plate ______ Convergent = collide, Divergent = divide, Transform = slide past each other
3 types of plate ______ Convergent = collide, Divergent = divide, Transform = slide past each other
Which type of rock is formed at mid-ocean ridges and records the Earth's magnetic orientation?
Which type of rock is formed at mid-ocean ridges and records the Earth's magnetic orientation?
What does the symmetrical magnetic striping pattern in mid-ocean ridge crust indicate?
What does the symmetrical magnetic striping pattern in mid-ocean ridge crust indicate?
How many major eons are there?
How many major eons are there?
What are the three major eons broken into?
What are the three major eons broken into?
True or false: The planetesimal hypothesis suggests that Earth formed from smaller rocky bodies called planetesimals that collided and merged.
True or false: The planetesimal hypothesis suggests that Earth formed from smaller rocky bodies called planetesimals that collided and merged.
True or false: The giant impact theory suggests that Earth formed from the debris created by a massive collision between a Mars-sized object and the young Earth.
True or false: The giant impact theory suggests that Earth formed from the debris created by a massive collision between a Mars-sized object and the young Earth.
True or false: The nebular hypothesis suggests that Earth and the other terrestrial planets formed from solid particles in the planetary disk around the young Sun.
True or false: The nebular hypothesis suggests that Earth and the other terrestrial planets formed from solid particles in the planetary disk around the young Sun.
Which celestial body is intermediate in size between planetesimals and fully-formed planets?
Which celestial body is intermediate in size between planetesimals and fully-formed planets?
What causes the dust and gas from a protoplanetary disk to come together?
What causes the dust and gas from a protoplanetary disk to come together?
When can a protoplanet be considered a planet?
When can a protoplanet be considered a planet?
Which stage of formation involves the movement of tectonic plates and the effects of atmospheric movements and water?
Which stage of formation involves the movement of tectonic plates and the effects of atmospheric movements and water?
During which stage of formation does the bombardment of planetesimals continue and craters form?
During which stage of formation does the bombardment of planetesimals continue and craters form?
Which stage of formation involves the bursting of lava through the planet's crust and the smoothing of craters?
Which stage of formation involves the bursting of lava through the planet's crust and the smoothing of craters?
What does the word "differentiation" mean when we are discussing Earth's early formation?
What does the word "differentiation" mean when we are discussing Earth's early formation?
Alfred Wegener proposed his theory of continental drift in what year _______?
Alfred Wegener proposed his theory of continental drift in what year _______?
While working as a meteorologist Alfred Wegener spent a lot of time in Antarctica near the South Pole.
While working as a meteorologist Alfred Wegener spent a lot of time in Antarctica near the South Pole.
The Appalachian mountains in US and UK appear to have once been connected.
The Appalachian mountains in US and UK appear to have once been connected.
True or false: Harry Hess proposed the theory of seafloor spreading?
True or false: Harry Hess proposed the theory of seafloor spreading?
True or false: Seafloor spreading occurs at mid-ocean ridges?
True or false: Seafloor spreading occurs at mid-ocean ridges?
Please give a brief summary in 5-10 sentences about the astronomer or astronomers that you created your project about. Please indicate the time period they were from and a few of their notable discoveries in Astronomy during your summary.
Please give a brief summary in 5-10 sentences about the astronomer or astronomers that you created your project about. Please indicate the time period they were from and a few of their notable discoveries in Astronomy during your summary.
Flashcards
What is the Earth's crust?
What is the Earth's crust?
The outermost layer of Earth, composed primarily of granite rock with a density of 2.7 g/cm3.
What was the supercontinent proposed by Alfred Wegener?
What was the supercontinent proposed by Alfred Wegener?
The supercontinent proposed by Alfred Wegener in 1915, where all the continents were once joined together.
Which type of crust is denser?
Which type of crust is denser?
The denser type of crust found beneath the oceans, which sinks under the less dense continental crust.
What causes minerals to move towards the core?
What causes minerals to move towards the core?
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Do Africa's west coast and South America's east coast fit together?
Do Africa's west coast and South America's east coast fit together?
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Were fossils found on multiple continents?
Were fossils found on multiple continents?
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Was glacial evidence found on different continents?
Was glacial evidence found on different continents?
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What are tectonic plates?
What are tectonic plates?
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What is evidence that Earth is in constant motion?
What is evidence that Earth is in constant motion?
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What are the three types of plate motion?
What are the three types of plate motion?
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What is igneous rock, and where is it found?
What is igneous rock, and where is it found?
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What does the magnetic striping pattern indicate?
What does the magnetic striping pattern indicate?
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How many major eons are there?
How many major eons are there?
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How are the major eons divided?
How are the major eons divided?
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Does the planetesimal hypothesis explain Earth's formation?
Does the planetesimal hypothesis explain Earth's formation?
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Does the giant impact theory explain Earth's formation?
Does the giant impact theory explain Earth's formation?
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Does the nebular hypothesis explain Earth's formation?
Does the nebular hypothesis explain Earth's formation?
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What is a protoplanet?
What is a protoplanet?
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What causes dust and gas in a protoplanetary disk to come together?
What causes dust and gas in a protoplanetary disk to come together?
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When is a protoplanet considered a planet?
When is a protoplanet considered a planet?
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What is surface evolution?
What is surface evolution?
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What is the cratering stage?
What is the cratering stage?
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What is the flooding stage?
What is the flooding stage?
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What is differentiation in Earth's formation?
What is differentiation in Earth's formation?
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When did Alfred Wegener propose his theory of continental drift?
When did Alfred Wegener propose his theory of continental drift?
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Did Alfred Wegener work in Antarctica?
Did Alfred Wegener work in Antarctica?
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Were the Appalachian Mountains connected?
Were the Appalachian Mountains connected?
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Who proposed the theory of seafloor spreading?
Who proposed the theory of seafloor spreading?
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Where does seafloor spreading occur?
Where does seafloor spreading occur?
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