Notes on Geology : Solid as rock

Jun 28th, 2015
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Objectives: - Describe a scientific theory about the formation of the Earth - Label a diagram of the internal structure of the Earth - List evidence for continental plate movement

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Notes on GeologySolid as RockObjectives:Describe a scientific theory about the formation of the EarthLabel a diagram of the internal structure of the EarthList evidence for continental plate movementNebula: gas cloud in space in which solar systems are formedThermonuclear: reactions in the sun releasing enormous amounts of energyPlanetoids: small planets formed during formation of a solar systemThere are several forms of evidence for continental drift:Fossils of extinct animals have been found in islands, which are now too widely separated by oceans for the animals to have moved between them. The islands must have been joined into continents at the time the animals were alivePatterns of rock found in Africa match with the same patterns of rock in South America, showing that these were once joinedMeasurable movement is occurring between the continents. America and Europe are separating by several centimetres every yearFossilised shellfish found on high mountains show areas where colliding continents have been squeezed upwards.Earthquake and volcanic activity is found on plate boundaries, caused by the movement of the platesSediment and magnetic field patterns show that new rock is squeezing onto the surface in mid-ocean ridges, causing spreading of the sea floorEarthquakesObjectives:Explain what an earthquake is and why they occurExplain how the position of an earthquake is foundUnderstand the Richter scale for measuring earthquakesRecognise why New Z

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