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