The Crust - This is the outermost layer. Made of many pieces called plates., The Mantle - This is the widest part. It is extremely hot and it consists of semi-molten magma., The Outer Core - This is a liquid layer made of iron and nickle. It is very hot., The Inner Core  - This is a solid ball of iron and nickel. It is the hottest part., Tectonic Plates - These are constantly moving, causing earthquakes when the fault line rub together., Seismorgraphs - A machine which measures the power of an earthquake., Ring of Fire - A place where the frequent earthquakes occur due to the position of tectonic plates., Focus - The point at which an earthquake begins, Epicentre - The point on the Earth’s surface directly above the site where an earthquake originates, Subduction zone - Where two tectonic plates collide and one plate is forced underneath the other and sinks into the Earth's mantle.,

Earthquakes

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