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Earth History Pt I Flashcards | StudBud
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Earth History Pt I
Earth History Pt I
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Earth Layers and plate tectonics #platetectonics #earthslayers
Flashcards
28 cards
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Questions
28
Answers
1
The main force that moves the tectonic plates is ...
slab pull
ridge push
convection in lithosphere
convection in asthenosphere
2
Oceanic crust at the mid-ocean ridge is...
much older than continental crust
younger than crust near a trench
not enough information given
the same age as continental crust
3
What evidence did Wegener use to support his continental drift theory?
sea floor spreading
convection currents
similar rocks and fossils on different continents
the jig saw puzzle
4
A continental - continental collision causes what?
mountains
rift valleys
hotspots
subduction
5
Convergent means...
To move away from each other.
To move towards each other.
To move one behind the other
To slide past one another.
6
What step comes after state the hypothesis in the scientific method
ask a question
do the experiment
gather materials
state the problem
7
A hotspot can produce
a chain of volcanoes
an ocean trecnh
a tectonic plate
a mid ocean ridge
8
The thickest layer of the Earth is the
inner core
mantle
outer core
crust
9
Magnetic reversals proves seafloor spreading because....
GPS systems know the magnetic north
convection currents within the Earth's lithosphere
we can see how the Earth’s magnetic field charges are aligned within crust
crust is being created at subduction zones
10
One model of Earth's layers could be....
apple skin
a hard boiled egg
an egg shell
a peach pit
11
A good model of Earth's crust would be a(n):
an orange slice
and egg yolk
a peach pit
an egg shell
12
At transform boundaries, how do the two plates move?
pull away from each other
do nothing
push against eacn other
scrape past one another
13
name the plate boundary
transform
convergent
convection
divergent
14
Mountains are the result of what plate interactions?
continental-oceanic subduction crust
continental-oceanic crust
oceanic-oceanic crust
continental-continental crust
15
What layer are the Tectonic Plates part of?
asthenosphere
lithosphere
shell
outer core
16
Earth's core is mostly made of...
Nickel
egg yolk
Iron
Dime
17
Name the plate boundary
divergent
convergent
transform
convection
18
When oceanic and continental plates collides, which plate subducts beneath the other
oceanic bc its more dense
oceanic bc its less dense
continental bc it more dense
continental bc its less dense
19
Two steps of the Scientific Method are...
ask a question, make an invention
ask a question, make up the problem
ask a question, design an experiment
ask a question, make up and answer
20
Why did many scientist reject the theory of continental drift when first proposed?
studies of the ocean floor showed its young age.
Wegener could not explain how the continents moved.
Earth's magnetic reversals disproved it.
Wegener had no evidence of Pangaea.
21
Earth's magnetic reversals are recorded in
sea-floor rock
deep ocean trenches
mantle
asthenosphere
22
Which number represents a volcanic island
3
1
2
4
23
Scientists used all of the following except what to prove that the sea floor was spreading
magnetic reversals
continental continental collisions
convection currents
mid ocean ridges
24
A tectonic plate is...
a large slab of crust where convection takes place
more expensive than paper plates
part of Earth's crust and upper mantle
part of the asthenosphere
25
The least dense layer of Earth is....
bottom layer
crust
core
mantle
26
A "spreading" center would most likely be....
Convergent Boundary
Transform Boundary
Divergent Boundary
Convection Boundary
27
At what type of boundary is new crust created?
subduction zone
divergent
convergent
transform
28
Another name for a subduction zone is
mid ocean ridge
ocean trench
hotspot
magnetic reversal
