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Year 9 Earth and Space science Flashcards | StudBud
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Year 9 Earth and Space science
Year 9 Earth and Space science
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1
What forms at transform boundaries?
Fault line
Tsunami
Trench
Volcano
2
Which layer of Earth is composed mostly of iron and nickel?
Outer core
Inner core
Crust
Mantle
3
Which seismic waves are the fastest and arrive first?
P waves
Surface waves
Plate waves
S waves
4
Which layer is rigid rock
Outer core
Lithosphere
Asthenosphere
5
What feature forms at a divergent boundary in the ocean?
Ocean trench
Hotspot
Volcanic arc
Mid-ocean ridge
6
Where do most earthquakes and volcanoes occur?
Continental interiors
Plate boundaries
Mid-ocean ridges
Polar regions
7
What part of the volcano is this
Channel
Conduit
Core
Chamber
8
What is the melted hot rock called once it reaches Earth’s surface?
Lava
Molten
Plasma
Magma
9
What is the outermost layer of Earth called?
Inner core
Outer core
Mantle
Crust
10
What part of the volcano is this
Side channel
Off vent
Side vent
Vent
11
Who proposed the theory of continental drift?
Alfred Wegener
Alfred Einstein
Harry Hess
Charles Darwin
12
In which layer do the convection currents occur?
Inner core
Outer core
Lithosphere
Asthenosphere
13
In which layer of Earth do convection currents occur?
Outer core
Inner core
Crust
Mantle
14
What is reverse polarity
Earth's poles were once in different locations
The seismic waves of an earthquake reverse
The continents have turned upside down
15
What instrument is used to measure the magnitude of an earthquake?
Barometer
Seisometer
Thermometer
Seismograph
16
What is the name for the area in the Pacific Ocean with many earthquakes and volcanoes?
Volcanic Zone
Ring of faults
Ring of fire
Atlantic Ridge
17
What is the name of the location on Earth’s surface directly above the earthquake focus?
Surface centre
Epicentre
Biocentre
Hypocentre
18
Which type of boundary is associated with the creation of new oceanic crust?
Divergent
Subduction
Convergent
Transform
19
Which type of plate boundary is responsible for forming mountains?
Subduction
Divergent
Transform
Convergent
20
At which type of plate boundary do plates move apart?
Subduction
Transform
Convergent
Divergent
21
Which process recycles oceanic crust back into the mantle?
Seafloor spreading
Subduction
Divergence
Continental drift
22
What is the primary source of energy that drives plate tectonics?
Earth's interior heat
Gravity
Earth's rotation
Sunlight
23
The theory that continents move over geological time is called what?
Pangea
Seafloor Spreading
Continental drift
Subduction
24
What type of wave is a P-wave
Longitudinal
Transform
Transverse
Longing
25
Which waves can only travel through solids?
S waves
P waves
Body waves
Surface waves