Structure of the Earth
Tectonic Plates
Volcanoes
Earthquakes
Tsunamis
100
Where is the mantle located?
Beneath the crust
100
What is pangea?
An Ancient Super continent
100
What is magma?
Molten Rock
100
Where do most earthquakes occur?
Boundaries of tectonic plates 'ring of fire'.
100
What is a tsunami?
A long high sea wave caused by an earthquake.
200
What is the Earth's inner core made of?
Solid iron
200
Rocks located near the ocean and river banks.
Sedimentry rock
200
A volcano that stopped erupting is called
Extinct
200
The above ground starting point of an earthquake is called
Epicentre
300
What form is the Earth's mantle?
Liquid and solid
300
What is the fault in the Earth's Crust?
A break in the Earth's crust
300
A person who studies volcanoes is called
A Vulcanologist
300
Instrument used to register and measure an earthquake.
Seismograph
300
What natural disasters make slow changes to the Earth?
Earthquakes and volcanoes
400
Tectonic Plates are...
Slow moving blocks of rocks
400
Describe the three different types of rocks; igneous, sedimentary and metamorphic.
Igneous - Liquid rock spurts from a volcano and cools and hardens e.g. granite Sedimentary - Sand and mud is deposited onto ocean and river beds and hardens from pressure, e.g. sandstone. Metamorphic - Rocks are changed by pressure or heat, e.g. slate
400
Why are volcano eruptions so dangerous?
Force of the blast - kills people, plants and animals Lava flow- starts fires, volcanic ash Tsunamis, floods, mudslides
400
What measures the power of an earthquake
Richter Scale
400
Three things that happen when a tsunami approaches.
waves slows down, height of the wave increases, distance between each wave decreases.
500
Answer both questions. Four different types of landforms. Name 3 physical forces that cause weathering (breaking down of the Earth's surface).
Mountain, hills, rivers, lakes etc. Temperature, heat, wind, frost, water
500
Name and define the 3 different types of movements between tectonic plates.
convergent - plates colliding together Divergent - tectonic plates moving apart Transform - Tectonic plates rubbing together
500
Three different types of volcanoes
Shield or Strato Volcano Submarine Volcano Subglacial volcano
500
Where are the strongest shock waves from an earthquake most likely to occur?
Closest to the epicentre
500
Place the events in the correct order. A huge mass of water is displaced. A submarine earthquake develops. A tsunami wave is set in motion. Movement between oceanic plates occur.
Movement between oceanic plates occur. A submarine earthquake develops. A huge mass of water is displaced. A tsunami wave is set in motion.
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