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the Earth
revision about the earth, volcanoes and earthquakes
Question | Answer |
---|---|
how many layers does the earth have? | four |
what are those layers? | crust, mantle, outer core and inner core |
what are the states of volcanoes? | active, dormant and extinct |
what are fold mountains? | fold mountains are the Earth's crust folding over itself as two plates collide. |
what do you use to measure a earthquake | you use a Seismograph |
what is a Tsunamis? | A Tsunamis is series of large waves caused by an earthquake underneath the sea. |
what are convection currents? | they are as magma heats it rises but as comes close to the surface it cools and sinks as it gets closer to the core it heats and repeats |