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Ch3: Introducing Earth Flashcards | StudBud
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Ch3: Introducing Earth
Ch3: Introducing Earth
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#science #geology #earth #earthscience #earthlayers #insideearth #8thgrade #grade8
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
Which of these is NOT true of runoff?
Less vegetation = less runoff
Flatter land = less runoff
Less rainfall = less runoff
More paved and developed land = more runoff
2
About how thick is Earth's outer core?
1800 km
3560 km
2258 km
1512 km
3
Which rock is most similar and common to the rock in Earth's oceanic crust?
Shale
Basalt
Granite
Limestone
4
Where does the energy come from that drives the whole Earth system?
Heat leaving Earth as it cools
Heat from the sun
Convection currents in the mantle
Motion from Earth's rotation
5
Earth's weather is part of the:
Atmosphere
Hydrosphere
Geosphere
Biosphere
6
Which is not considered a destructive force?
Earthquakes
Rain
Ice
Wind
7
Which is true of an erupting volcano?
Destructive force - erodes and carries away rock
Constructive force - lifts up mountains and rocks
Constructive force - adds new layers of rock to Earth
Destructive force - destroys plants and land features
8
What causes Earth's magnetic field?
Vibrations in the inner core
Convection currents in the mantle
Movements in the outer core
Cracks in the crust
9
Which two elements are most common in Earth's crust?
Silicon, Hydrogen
Oxygen, Carbon
Silicon, Oxygen
Iron, Nickel
10
Waves that move slowly are more likely to shape the coast by:
Deposition
Erosion
11
Which Earth layer is the coolest?
Outer core
Crust
Mantle
Inner core
12
About how thick is Earth's mantle?
3000 km
3500 km
2500 km
2000 km
13
Besides iron and nickel, which three elements are probably found in Earth's core?
Oxygen, Hydrogen, Carbon
Silicon, Sulfur, Oxygen
Sulfur, Hydrogen, Carbon
Oxygen, Silicon, Carbon
14
As depth inside Earth increases...
pressure decreases, temperature increases
pressure increases, temperature decreases
pressure decreases, temperature decreases
pressure increases, temperature increases
15
Earth's continental crust is most similar in composition to:
Granite
Shale
Sandstone
Basalt
16
Which of these is an accurate range describing the thickness of Earth's crust?
5-80 km
3-10 km
10-100 km
10-25 km
17
Which of these is NOT part of the hydrosphere?
Oceans
Rain
All of these are in the hydrosphere.
Clouds
18
When do glaciers deposit the material they are carrying?
When they freeze
When they melt
Glaciers do not deposit material
When they slow down
19
Which of these is NOT considered a constructive force?
Erosion
Volcano
Earthquake
Weathering
20
What is the correct order of layers of the mantle, starting with the outermost layer?
Mesosphere, lithosphere, asthenosphere
Asthenosphere, mesosphere, lithosphere
Lithosphere, asthenosphere, mesosphere
Mesosphere, asthenosphere, lithosphere
21
What is NOT true of seismic waves?
They come from earthquakes
They are vibrations
They carry energy
We can always feel them
22
When do waves deposit the material they're carrying?
When they slow down
When they change direction
When they speed up
Waves don't deposit material
23
Which Earth layer is liquid?
Inner Core
Outer Core
Crust
Mantle
24
Which of these is not part of the geosphere?
Metals
Minerals
Rocks
All of these are in the geosphere.
25
Which layer of the mantle is solid, but hot and flexible and can bend and move over time?
Asthenosphere
Mesosphere
Lithosphere
26
Scientists learn about Earth's interior from:
Radiation from the sun
Convection currents
Seismic waves
Rock samples
27
What are the two types of glaciers?
Valley, Oceanic
Continental, Oceanic
River, Valley
Continental, Valley
28
What are the two ways waves are most likely to weather and erode a coast?
Plucking and deposition
Deposition and abrasion
Abrasion and impact
Plucking and impact
29
What is the process of a glacier picking up rocks and sediment as it moves?
Abrasion
Plucking
Deposition
Scraping
30
According to our book, what would happen if you kicked the asthenosphere?
You would hurt yourself.
You would break your foot.
You would break your toe.
You would stub your toe.
31
Which part of the Earth system contains bacteria and fungi?
Hydrosphere
Biosphere
Atmosphere
Geosphere
32
Why is the inner core solid?
Not hot enough to melt
Under too much pressure to spread out as liquid
It just is
Iron and nickel can't melt
33
Caves and sinkholes underground are usually formed by:
Deposition
Abrasion
Chemical Weathering
Impact
34
Which layer of the mantle also includes the crust?
Asthenosphere
Lithosphere
Mesosphere
35
Which two spheres interact when a volcano erupts?
geosphere, atmosphere
hydrosphere, geosphere
biosphere, hydrosphere
biosphere, atmosphere
