EARTH
What is the hottest layer of the earth?
Core
Name the three main interactions in the plates of the earth. (Graham Cracker Experiment)
Convergent; Divergent; Transform
A giant ocean wave that can be a result of an earthquake
Tsunami
A ______________ forms where a crack in the earth's crust allows magma and gasses to come to the surface
Volcano
The bowl shape at the top of the main vent is called a _________________.
Crater
What is the outer layer of the earth called?
Crust
Explain what CONVERGENT boundaries are in plate tectonics. can earthquake or volcano occur due to this movement?
when plates move into each other, yes, both
Circle of volcanoes and earthquake sites around the pacific ocean
Ring of fire
When magma rises to the surface and comes out of a volcano, it is called ______________.
Lava
Volcanoes are classified by their activity levels. Name the three types of volcanoes
Active; dormant; extinct
What is the second layer of the earth called?
Mantle
Explain what DIVERGENT boundaries are in plate tectonics can earthquake or volcano happen due to this plate movement?
when tectonic plates move apart from each other, yes both
Strength of an earthquake's seismic waves
Magnitude
An active volcano can produce 4 things. list them
Ash, lava flow, volcanic gases, pyroclastic flow
Erthquake in Sichuan China
location, year, magnitude, Epicentre
Southwest China, 2008, 7.9 on Richter scale, mountain ,
There are two types of crusts on the earth's surface.
continental and Oceanic crust
Explain what TRANSFORM boundaries are in plate tectonics, can volcano happen?
where plates scrape/ slide past each other without moving apart, No, only earthquake can occur.
What are outer core made up of
liquid iron and nickel
Lava flows out of the earth through an opening in the surface called a ____________.
Vent
The beginning point of an earthquake is known as the ____________.
____ is the process where one plate is forced beneath another
Focus
Subduction
What are scientists called who study volcano?
volcanologist
Give the definition: Plates
Plates are pieces of the earth crust.
Name of one of the scales that is used to measure the magnitude of an earthquake
Richter scale
Volcanic gas can cause acid rain, what can ash cause?
irritation to eye, lungs, damage to; plane engines, plants
What are natural hazards? After shock
are natural events that cause damage to property (like houses and farms) people and the environment. e.g volcanoes, tsunamis, tornadoes, hurricanes and floods.
After the main earthquake, smaller earthquakes