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Earth Science Review Flashcards | StudBud
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Earth Science Review
Earth Science Review
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#earth
Flashcards
16 cards
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Questions
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Answers
1
What happens when a plate splits apart?
plates melt and turn into volcanoes
new crust is made
subduction
the Earth explodes
2
Convection that causes plate movement occurs where?
lithosphere
core
mesosphere
asthenosphere
3
The magnetic field is generated due to convection in the?
mantle
inner core
outer core
crust
4
Why was the Earth molten when it first formed?
radioactive decay
gravity
heat from sun
bombardment by asteroids
5
What does Uranium decay into that helps us date the Earth?
Lead
Carbon
Nitrogen
Oxygen
6
Age of the Earth was determined using?
moon rocks
zircons
rock layers
books
7
The driver of plate movement is?
the core
plates
munch and crunch
convection
8
What is the order of layers from youngest to oldest?
e, a, d, b, c
c, b, a, d, e
a, b, c, d, e
e, d, a, b, c
9
The physical layers are separated by?
rock type
state of matter
10
The outermost chemical layer is?
lithosphere
asthenosphere
crust
mantle
11
What is the outermost physical layer of the Earth?
lithosphere
mesosphere
crust
asthenosphere
12
What type of boundary forms volcanoes?
divergent
convergent
13
what type of boundary splits plates apart?
convergent
divergent
14
What occurs when oceanic and continental plates collide?
subduction of oceanic plate
ridges
subduction of continental plate
mountain building
15
Why did the Earth separate into layers
density differences
rock types
16
How old do scientists think the Earth is?
4.5 billion years
2.5 billion years
12.1 billion years
3.6 billion yeas
