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Science 7 Unit 5 - Planet Earth Flashcards | StudBud
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Science 7 Unit 5 - Planet Earth
Science 7 Unit 5 - Planet Earth
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1
what is one of the most powerful causes of erosion?
rocks in motion
Rock slides
avalanches
water in motion
2
a mineral can be a:
rock
two answers are correct
pure substance
compound
3
tiny earthquakes that happen after the main earthquake
priorshocks
before shocks
aftershocks
tiny shocks
4
a type of fossil where deposits of a hard mineral (silica) replaces the bones of the organism
original remains
petrified
carbon based
carbonaceous
5
when minerals break apart in a flakey layered way it is known as:
cleavage
flakage
fracture
breakage
6
which is not an example of evidence for continental drift?
Fossils
Rocks
Chemical
Biological
7
a method of measurement that describes the magnitude of an earthquake:
Sizeograph
Richard Scale
Seismograph
Richter Scale
8
old mountains would be
jagged at the top
smoothed out and rounded
9
these machines measure earthquakes
Richard scale
sizeograph
seismograph
Richter scale
10
this rock is formed below the earth's surface with a lot of pressure and heat, it changes form
Extrusive rock
Intrusive Igneous rock
Igneous Rock
Metamorphic rock
11
what is the correct order from largest to smallest?
Periods, Eons, Eras
Eons, Eras, Periods
Periods, Eras, Eons
Eras, Periods, Eons
12
this wave travels the fastest
secondary wave
primary wave
underground wave
surface wave
13
this type of rock forms magma or lava cools and solidifies.
intrusive
metamorphic
minerals
Igneous
14
when mountains are formed from folding, the upper fold is known as the
syncline
synkline
anticline
antikline
15
the colour of the powdered form of a mineral left behind when scraped along a plate
strut
street
strike
streak
16
volcanoes around the pacific ocean which formed in a circular fashion are known as:
Ring of Faults
Ring of fire
Ring of lava
Ring of Water
17
the place deep in the earth's crust where an earthquake begins
epicentre
focal
epipen
focus
18
acid rain causes:
Biological Weathering
Chemical Weathering
Mechanical weathering
water weathering
19
when two continental plates come together a:
new rock forms
Mountain forms
Tsunami forms
subduction zone forms
20
rocks continue to change in no particular order through a process called the
Mineral cycle
Nitrogen Cycle
Igneous Cycle
Rock Cycle
21
fossil fuels form from
igneous rocks
sediments
metamorphic rocks
dead plant and animal matter
22
visible layers in sedimentary rock is known as
compaction
layers
Stratisphere
Stratification
23
what is the proper order starting at the center of the earth?
mantle, crust, inner core, outer core
inner core, outer core, crust, mantle
outer core inner core, mantle, crust
inner core, outer core, mantle, crust
24
this type of earthquake wave does the most damage
primary wave
secondary wave
underground wave
surface wave
25
which of the following is not used to identify a mineral
breakability
streak
lustre
colour
26
one explanation of why plates move is because of ____________ currents
correction
connection
Convection
contention
27
earthquakes that occur under plates in the ocean cause
hurricanes
monsoons
Tsunamis
typhoons
28
when two plates converge, and one plate is shoved under the other, this is known as:
subduction zone
volcano zone
abduction zone
subatomic zone
29
a fossil where the actual organism is preserved
petrified
mold
Trace
Original remains
30
new rock being formed in the ocean forming mid-ocean ridges is known as:
Sea-floor spreading
magma
volcanoes
ocean-floor spreading
31
when volcanoes are not active.. they are known to be
doorknob
dead
dormant
doormat
32
which is not a type of fossil discussed in class?
petrified
modified
mold
cast
33
magma that cools below the earth's surface is known as:
extrusive igneous rock
igneous rock
intrusive igneous rock
intrusive rock
34
the surface directly located above where the earthquake originates is known as the:
focal
epipen
epicentre
focus
35
these types of fossils are evidence of animal activities and behaviours
trace
carbonaceous
petrified
original remains
36
which of the following is not considered a fossil fuel?
Natural gas
Oil
Coal
Methane gas
37
which object has similar layers as the earth?
orange
watermelon
baseball
egg
38
frost-wedging is an example of:
water weathering
Mechanical weathering
Biological weathering
Chemical weathering
39
this type of rock has obvious layers, and is formed from sediments being compacted together
Sedimentary rock
Metamorphic Rock
Igneous Rock
extrusive rock
40
to test how strong a mineral is, this test is conducted:
streak test using Moh's hardness scale
streak test
scratch test using Moh's hardness scale
Moe's hardness Scale
41
the main difference between lava and magma is:
magma is extrusive lava is intrusive
magma is intrusive, lava is extrusive
lava and magma is intrusive
lava and magma are extrusive
42
if you were to compare an egg to the layers of the earth, which part would be the crust?
yolk
all of the above
egg white
shell
43
the super continent that existed a very long time ago is known as:
Pangeea
Pangia
Pangaea
Pangaae
44
two plates pulling apart:
diverging plates
protruding plates
continental plates
converging plates