The Earth, formed around 4.6 billion years ago started as gases and rocks in space, which began to gravitationally attract more matter. An atmosphere was created by steam escaping from the crust and gases released from volcanic eruptions.
Read More A volcano is a vent or chimney that transfers magma from inside the Earth to the surface. Once magma has been erupted outside of a volcano, it is called lava which is what builds up around the base of the vent to create the volcano.
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This is the theory that scientists use to describe how continents move throughout the earth’s mantle.
The lithosphere of the earth is broken into pieces, called tectonic plates and these plates move because of the convection currents in the mantle. Read More A fault is a break in the Earth’s crust where the rocks on either side have slid past each other and are independent of each other. When they rub, it causes stress and when the tension and to release this energy, the two plates slip/move and create earthquakes.
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A site dedicated to geology. Information gathered from multiple sites, sheets and from other student's shared work. For more information about science click here.