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Earth Structures
Earth Structures
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#7th grade science #7th grade earth structure
Flashcards
28 cards
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Practice quiz
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Questions
28
Answers
1
Scientist believe there was a super giant continent they call...
North America
Pangea
South America
Asia
2
What layer of the atmosphere does weather happen?
troposphere
thermosphere
stratosphere
mesosphere
3
The crust is thickest at the equator.
False
True
4
Continent Drift Theory states...
that parts of the Earth's crust drift atop a liquid core
that the continents switch places every 100,000 years
that the oceans move around the earth over continents
that mountains and valleys drift on the crust
5
Under which ocean is the mid-ocean ridge located?
Atlantic Ocean
Pacific Ocean
Arctic Ocean
Indian Ocean
6
Iron is found...
all of the layers of the earth have iron
in the mantle, in the atmosphere, in the outer core
only the inner core has iron
on the crust, in the mantle, in the core
7
How many major tectonic plates are there?
5
3
7
6
8
What evidence of Pangea is there?
cracks in the earth
foot prints
the seas
fossils
9
The mid-ocean ridge is...
a series of deserts under the ocean
a series of mountain ranges under the ocean
all of the above
a series of valleys under the ocean
10
What makes up the
Ring of Fire
...
oceanic ridges, earthquakes
oceanic trenches, volcanic belts, tectonic plate movement
tectonic plates, islands
volcanoes, lakes
11
Under what lakes are there fault lines?
Lake Powell, Bear Lake
Lake Mead, Bear Lake
Lake Mead, Lake Powell
Lake Mead, the Great Salt Lake
12
What types of faults are found on the earth?
normal faults
all of the above
reverse faults
strike-slip faults
13
What do plate tectonics do?
all of the above
cause earthquakes
cause continents to shift
cause volcanoes
14
What is elevation?
height of an elevator ride
height of an airplane flying at 30,000 feet
height of the earth's crust that rises above sea level
height of sea level during low tide
15
Which layer of the atmosphere is farthest from the Earth's surface?
mesosphere
thermosphere
troposphere
exosphere
16
Longitude lines run...
north and south around the earth
east and west around the earth
17
Latitude lines...
run parallel east and west around the earth
run parallel north and south around the earth
18
At what level of the atmosphere will you find the hottest temperatures?
mesosphere
stratosphere
thermosphere
exosphere
19
Does the Hawaiian Islands lie on...
Oceanic Crust
Continental Crust
20
Where is the ozone located?
the stratosphere
the thermosphere
the lithosphere
the mesosphere
21
How many hemispheres are found on earth?
4
3
2
1
22
Which of these are continents found on Earth?
Brazil, North America, Africa
Middle East, New Zealand, Antarctica
South America, Australia, Africa
Europe, Asia, United States
23
What layer is right under the Earth's crust?
inner core
atmosphere
core
mantle
24
The equator ...
is a line that is only visible from space.
separates the Pacific Ocean from the Atlantic Ocean.
separates the two hemispheres on Earth.
a undersea canyon.
25
What layer of the earth are temperatures between 4300-7200 degree Celsius?
outer core
crust
mantle
inner core
26
How many continents are there?
5
9
7
3
27
How thick is the oceanic crust?
5 to 7 kilometers
2 to 4 kilometers
5 to 10 kilometers
1 to 3 kilometers
28
Magma is found...
both
coming out of volcanoes
under the Earth's crust and upper part of the mantle
