Which answer BEST describes the core?

innermost part of Earth below the mantle

Which event can produce an earthquake?

movement of plates along a fault

What happens at a transform boundary that can cause an earthquake?

2 plates slide or glide past each other

A model will show how physical layers match the compositional layers. What should be shown?

the inner abnd outer core form a single comp layer

What must happen between plates to produce a rift zone?

oceanic plate moves away from another oceanic plate

How can the epicenter be miles from the fault line?

fault dosn't go straight down so focus not directly beneath

Which describes the mantle?

hot layer of rock between crust and core

How is outer core different from the inner core?

Outer core liquid, inner core solid

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Alva Science 7th Unit 2 Earth Structures

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Rock cycle plate tectonics earthquakes volcanoes mountains

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Questions 25

Answers

1
Which answer BEST describes the core?
Solid outer layer of Earth above mantle
hot, slow flowing layer beneath crust
layer of Earth that tectonic plates move on
innermost part of Earth below the mantle
2
What is subsidence? Earth's crust...
rising
sinking
moving in any direction
shifting sideways
3
Earth can be divided into 3 layers - crust mantle and core. How are these layers identified?
plate tectonics
Chemical composition
physical properties
structural features
4
Basalt and granite both form when lava cools - which statement is true?
both are igneous rocks
basalt is igneous and granite is metamorphic
both are metamorphic rocks
basalt is metamorphic and granite is igneous
5
Which is needed to form metamorphic rock slate from sedimentary rock shale?
melting and solidification
erosion and deposition
heat and pressure
weathering
6
What process causes hot rock to rise through the mantle at hot spots?
radiation
conduction
convection
condensation
7
Which event can produce an earthquake?
sudden release of energy from the mantle
force of tsunamis in the ocean
movement of plates along a fault
violent shaking of sections of the lithosphere
8
What happens at a transform boundary that can cause an earthquake?
2 plates collide
2 plates move away from each other
2 plates slide or glide past each other
2 plates move in same direction
9
A model will show how physical layers match the compositional layers. What should be shown?
crust is the only comp. layer not in physical layers
the inner abnd outer core form a single comp layer
The asthenosphere includes the comp layer of the crust
physical layers match the compositional layers
10
What must happen between plates to produce a rift zone?
oceanic plate moves away from another oceanic plate
2 continental plates move together
oceanic plate collides with continental plate
2 oceanic plates move together
11
Which change of state takes place when igneous rock forms?
liquid to solid
gas to solid
solid to liquid
solid to gas
12
Which BEST describes compression caused by tectonic plate movement?
squeezes rocks
stretches rocks
pulls rocks apart
slides rock past each other
13
Over time rock can crack and break into smaller pieces. What is this called?
weathering
erosion
deposition
subsidence
14
What natural event MOST LIKELY took place where igneous rocks form?
volcanic eruption
landslide
earthquake
flooding river
15
What is a convection current? the transfer of energy ...
by direct contact
through a solid like the crust
by movement of matter
from low temp to high temp
16
How can the epicenter be miles from the fault line?
the epicenter is greatest damage and can be miles from quake
earthquakes can happen away from faults
fault dosn't go straight down so focus not directly beneath
Some earthquakes have more than 1 epicenter
17
Which describes the mantle?
liquid layer that encloses a solid ball of iron and nickel
innermost layer made of iron and nickel
thin and solid outermost layer
hot layer of rock between crust and core
18
How does the distance from the epicenter of an earthquakes change its effects?
strongest in ring surrounding for several miles
Strongest at the epicenter
strongest north and south of epicenter
strongest furthest from epicenter
19
Mt. Everest formed when 2 plates collided - What process formed it?
uplift
weathering
erosion
subsidence
20
Which characteristic of the asthenosphere BEST describes why the plates move?
Soft
porous
permeable
rigid
21
How is outer core different from the inner core?
Outer core liquid, inner core solid
outer core nickel, inner core iron
outer core solid, inner core liquid
outer core iron, inner core liquid
22
molten material flows out gently and cools - what will form over time?
volcanic mountain
caldera
magma chamber
plate boundary
23
What must happen for igneous rock to change to sedimentary rock?
broken down into sediment
melt and become magma
minerals must dissolve in water
excessive heat and pressure
24
Which of the following MOST LIKELY causes pebbles in a stream to erode?
flowing water
movement of ice
freezing and thawing
force of gravity
25
Which of Earth's 5 layers do the plates move on top of?
lithosphere
outer core
asthenosphere
mesosphere

Alva Science 7th Unit 2 Earth Structures Flashcards | StudBud