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Duplicate of Science 7 Planet Earth Flashcards | StudBud
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Duplicate of Science 7 Planet Earth
Duplicate of Science 7 Planet Earth
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Planet Earth Unit Review
Flashcards
31 cards
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Practice quiz
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Host live
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Questions
31
Answers
1
Alfred Wegener came up with which theory?
mid-Atlantic rift
evolution
erosion
continental drift
2
The theory of plate tectonics labels plates which push against each other as
convergent
divergent
allegiant
insurgent
3
What is it called when a volcano is not active?
dormant
secondary
disruptive
sleeping
4
How can we tell which mountains are "young"?
They are jagged
They are taller
They are smoother
They are colder
5
Which is not a rock family?
sedimentary
limestone
metamorphic
igneous
6
Which mineral is hardest?
topaz (8)
flint (7.5)
graphite (1.5)
apatite (5)
7
Glaciers, gravity, wind and water are agents of what?
continental drift
mineral formation
the rock cycle
erosion
8
When two plates collide and one is shoved under the other, it is called
composite collision
convection crater
trench warefare
subduction zone
9
Which type of rock family is formed from heat and pressure?
Metamorphic
Sedimentary
Igneous
10
What is rock made from?
minerals
dust
fire
crystals
11
According to The Mohs Hardness Scale, 8.0 is the highest on the scale
True
False
12
Which layer of the earth is liquid?
inner core
crust
outer core
mantle
13
Which is an example of Mechanical Weathering
moss growing on the side of a rock
a plant root growing between a rock
rocks rolling down a slope
acid rain
14
what is sonar
underwater sound wave technology
silent cartography
self contained breathing apparatus
electrocardiogram device
15
The high point of the folded rock is called the
peak
thrust fault
anticline
syncline
16
Which mineral is the hardest?
gypsum
topaz
fluorite
apatite
17
Which magnitude of an earthquake is the most powerful
7.6
7.4
6.7
6.9
18
What scale measures the impact of earthquakes?
Newton scale
Richard scale
Mohs scale
Richter scale
19
What is the Ring of Fire
The outline of the Atlantic plate where volcanoes are active
The outline of the Pacific plate where volcanoes are active
The bitter rival of the Bermuda Triangle
A song by Johnny Carson
20
Most volcanoes in the Ring of Fire occur at
subduction zones
hot spots
focus points
divergent plates
21
Which mineral is considered to be the softest?
calcite
emerald
talc
diamond
22
Which layer of the earth is the first one under the crust?
inner core
lower mantle
outer core
upper mantle
23
Which of the following is NOT a type of seismic wave?
Primary wave
Focus wave
Surface wave
Secondary wave
24
What is an example of the biological evidence for continental drift?
similar fossils were found on separate continents
climate evidence based on coal deposits in unlikely places
formation of continents which seemingly "fit" together
similar rocks from mountains were found on other continents
25
Intrusive rocks are formed when
frost wedging separates a rock into two
sediments accumulate and compact in between two other rocks
magma cools beneath the surface of the earth
lava cools above ground
26
What is a tsunami?
An earthquake underground
An earthquake underwater
An earthquake which topples buildings
An earthquake which creates a whirlpool
27
Which is not used for mineral classification?
lustre
weight
colour
fracture
28
Geologists think that tectonic plates are able to move because of
divergent plates
convection currents
gravitational pull from the moon
hot spots
29
The bottom of the ocean is
smooth with sediment
mountainous
too deep to explore
full of sharks
30
the Mid-Atlantic Ridge is an example of
hot spots
volcanic interactions
sea floor spreading
glacier frost wedging
31
The surface location directly above the focus of an earthquake is called the
source
mantle
origin
epicenter
