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Earth Science - Chapter 1 (sec.1-3) 2020 Flashcards | StudBud
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Earth Science - Chapter 1 (sec.1-3) 2020
Earth Science - Chapter 1 (sec.1-3) 2020
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#Earthscience #8thgrade
Flashcards
26 cards
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Questions
26
Answers
1
Why is the inner core a solid?
The temperature is extremely high
The pressure is greater than the temperature
The temperature is low
The temperature is greater than the pressure
2
All of the following are pieces of evidence to support the continental drift EXCEPT:
Mountain ranges match
The shape of the continents
Fossils found in different countries
Languages between countries
3
The inner core is primarily composed of...
sodium and oxygen
liquid rock
iron and nickel
iron and calcium
4
Middle mantle; flows like hot asphalt
lower mantle
lithosphere
outer core
asthenosphere
5
Which wave travels in an "s" pattern and stops when it reaches a liquid?
s-waves
p-waves
seismic waves
surface waves
6
The dark, dense, igneous rock with fine texture, found in oceanic crust
marble
basalt
granite
quartz
7
Which force is responsible for the continental drift?
radiation
convection currents
conduction
gravity
8
Which layer of the Earth has the greatest density?
crust
outer core
inner core
mantle
9
Favored explanation for the formation of the solar system and our planet
big bang theory
protoplanet hypothesis
planetesimal hypothesis
continental drift
10
Which of the following have been/are sources of heat in Earth's interior?
friction, fire, gravity
gravity, chemical reactions, the sun
the sun, fire, friction
radioactive decay, friction, gravity, chemical reactions
11
The name of the single landmass that broke apart 200 million years ago
Wegener
Laurasia
Pangaea
Mesosaurus
12
The lithosphere consists of....
crust and upper mantle
upper mantle and lower mantle
inner core and outer core
lower mantle and outer core
13
Which layer of the Earth do convection currents occur?
upper mantle
middle mantle
inner core
crust
14
The transfer of heat by movement of a fluid
convection
melting
conduction
radiation
15
What causes warm air to rise?
It changes in weight making the air much lighter
It is less dense than cool air
It is more dense than cool air
The molecules are closer together
16
When considering the general trends within the Earth, which of the following is true?
Temperature decreases with depth, but pressure increases
Density of materials and temperature decrease with depth
Pressure, density, and temperature increase with depth
Temperature increases but density decreases
17
Which answer shows the layers of the earth in the correct order based on relative thickness
crust, mantle, outer core, inner core
mantle, crust, outer core, inner core
crust, inner core, outer core, mantle
outer core, inner core, crust, mantle
18
Which waves travel the fastest through earth's interior layers?
P-waves
surface waves
S-waves
earthquake waves
19
Which is true about s-waves?
They can not travel through solids
They can not travel straight through earth because of the outer core
They are the fastest seismic waves
They can not be read by a seismogram
20
Which of the following is true of p-waves?
They move in a "pushing" motion and can pass through liquids
They move in an "s" pattern and stop when they reach a liquid
They move in an unpredictable pattern and can pass through liquids
They travel along Earth's surface
21
The amount of mass in a given space
pressure
gravity
mass
density
22
below the crust; largest layer; has 3 parts
crust
Pangaea
mantle
asthenosphere
23
What is the major cause of the differentiation of the Earth into a layered structure?
Rocks slammed into the young earth forcing layers to form
Materials were melted and then separated based density
A lack of pressure allowed the layers to form
Gravitational force caused the layers to form
24
By studying earthquake waves, scientists have learned...
The crust is the thinnest layer
The earth is perfectly round
There are different layers to earth's interior - some solid, some liquid
Temperature/seasons affect how seismic waves travel
25
When liquid is ______ it becomes _______ and it __________.
heated, more dense, sinks
heated, less dense, rises
cooled, more dense, rises
cooled, less dense, rises
26
The thinnest layer of the Earth
crust
mantle
lithosphere
core
