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Year 9 Earth Science Revision Flashcards | StudBud
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Year 9 Earth Science Revision
Year 9 Earth Science Revision
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Revision for 9B
Flashcards
24 cards
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Questions
24
Answers
1
Which is NOT a type of volcano?
Viscosity
Cylindrical
Composite/strato
Shield
2
For volcanoes, what do we call the measure of a fluids resistance to flow?
Variety
Viscosity
Velocity
Verocity
3
Tsunamis and tidal waves the same thing
True
False
4
The crust and upper mantle are together known as the ______ which forms Earths tectonic plates
lithosphere
asthenosphere
Inner core
surface
5
What do you call a fold of rock layers that slope upward on both sides of a common low point?
Transform fault
Ocean ridge
Syncline
Anticline
6
An underwater mountain range, formed by plate tectonics is referred to as:
Collision zone
Mid ocean ridge
Subduction zone
Rift valley
7
When magma cools down and solidifies what kind of rock does it form?
Stone cold
Metamorphic
Sedimentary
Igneous
8
What occurs when continental crust is colliding? (crust pushes up fold mountain ranges)
Transform faults
Subduction zones
Collision zones
Rift valley
9
San Andreas is an example of a?
Rift Valley
Collision zone
Transform fault boundary
Convergent boundary
10
The Himalayas is an example of which plate boundary?
Divergent
Convergent
Subduction
Transform fault
11
Which of these countries has a higher chance of experiencing earthquakes?
Canada
Japan
Australia
Algeria
12
Molten rock under the Earth's surface is known as:
Ash
Silica
Lava
Magma
13
Slab pull and ridge push are theories of tectonic plates moving using the force of:
Convection
Magma
Subduction
Gravity
14
Who introduced the theory of continental drift?
Kendrick Lamar
Harry Hess
Albert Einstein
Alfred Wegener
15
Plates move due to hot magma in the stratosphere rise up and flow under the plates creating:
convection currents
Igneous rocks
seafloor spreading
rapid movement
16
Which scale uses roman numerals to measure the effects of earthquakes?
Mercalli
Richter
Magnetic
Micro
17
'Sticky' magma that flows slowly with explosive eruptions has:
Low viscosity and high levels of trapped gas
High viscosity and high levels of trapped gas
Low viscosity and low levels of gas
High viscosity and low levels of gas
18
The _______ is the place within the earths crust that an earthquake emanates from
Magnitude
Seismic waves
Epicentre
Focus
19
The 2004 Indian ocean tsunami was caused by which plates being subducted?
The Indo-Australian plate subducting below Eurasian Plate
The Indo-Australian plate subducting below the pacific plate
The Eurasian plate subducting below the pacific plate
The Eursasian plate subducting below the Philippine plate
20
What type of plate boundary is characterised by two plates moving towards each other?
Convergent
Divergent
Subduction
Transform
21
How many large sized tectonic plates are there?
6
5
7
9
22
Which is not part of the structure of the earth?
Crust
Mantle
Middle core
Inner core
23
Transform fault plate boundaries are characterised by:
Weak earthquakes and no volcanism
Weak earthquakes and non-violent volcanic eruptions
Strong earthquakes but no volcanism
Strong earthquakes and intense volcanism
24
What do we call transverse waves that cause an up and down movement during earthquakes?
Surface waves
S-waves
P-waves
C-waves