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Science Chapter 6: Rapid Changes on Earth Flashcards | StudBud
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Science Chapter 6: Rapid Changes on Earth
Science Chapter 6: Rapid Changes on Earth
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#science #fourthgrade
Flashcards
19 cards
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Questions
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Answers
1
Molten rock that reaches Earth's surface when a volcano erupts is _________.
lava
hot ash
igneous rock
magma
2
Slow continuous movement along a fault line is called a ____________.
crack
split
crawl
creep
3
Which natural event can lead to a landslide?
weathering
rock cycle
tornadoes
wildfires
4
How can an earthquake affect Earth's surface?
Earthquake can move rock
both a and b
Earthquake can shatter windows
Earthquake can produce new landforms
5
How can a seismologist tell that an earthquake has occurred on the Earth's surface?
hole in the ground
fallen trees
houses damaged
cracks in the ground
6
A crack in the Earth's surface is called a ________.
fault
rupture
land mine
fracture
7
An opening in Earth's crust with ash, gas, & molten rock escaping from deep within the Earth
cyclone
tornado
hurricane
volcano
8
What was NOT a result of the 1980 Mount St Helens eruption?
Ash blew into the air
Slow-moving lava built up the mountain
The landscape was changed
Rock, mud, and water crashed down the mountain
9
What scale is used to measure the magnitude of an earthquake?
Weight scale
Richter scale
Sonoma scale
Falcon scale
10
In which place is a landslide most likely to occur?
rainy, mountain forest
sunny, grassy fied
rainy, bare slope
dry, flat desert
11
The study of earthquakes is called __________.
seismology
anthropology
biology
geology
12
A sudden movement of part of the Earth's crust is an _____________.
landslide
earthquake
tsunami
rockslide
13
Sudden movement of loose rock down a slope is called ___________.
rockslide
landslide
avalanche
mudslide
14
A tsunami is a very large ocean wave that is caused by a/an _______________.
volcano
landslide
seismograph
underwater earthquake
15
What is the difference between the focus and epicenter of an earthquake?
focus= watch; epicenter= severe landslide
focus=starting point; epicenter=where its felt most strongly
focus= starting point; epicenter= center of a storm
focus= listen carefully; epicenter= most damage done
16
Volcanoes can affect Earth's surface _______________.
for hundreds of miles around
a few feet around
at the base of the volcano
on the south side of the volcano
17
Molten rock that is beneath Earth's surface is __________.
slime
magma
mantle
lava
18
A tsunami is a very large ocean wave that is caused by an/a ______________.
landslide
seismograph
volcano
underwater earthquake
19
Which does not cause a rapid change to Earth's surface?
fault
tsunami
earthquake
volcano erupting