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Lab Report The structure of the earth is made up of many layers but the crust and the upper mantle make up the lithosphere The lithosphere is divided into individual sections called plates The rest of the mantle makes up the asthenosphere Convection in asthenosphere causes the plates to shift and move about We can tell where the plates are or have been because volcanoes and earthquakes have their own boundaries when the are active Tectonic plates have three relationships with each other The have convergent boundaries when they collide divergent boundaries when they move apart and transform boundaries when they slide past each other The friction and heat caused by the plates sliding all over the place causes volcanoes if it melts the rock and earthquakes if the plates slip while sliding away and towards each other The purpose of this lab was for us to investigate and learn about the three different kinds of plates The model was used just like any model To help us understand the different plates and how they work The model is a great way to help show something which is confusing to tell in words The lab was to construct a model showing the different kinds of boundaries First we needed three worksheets each with a different plate on it and three tacks to hold the plates in place With scissors we cut out the plates and then we stuck the tacks through designated holes With everything in tact you could move the model and see how the three plates slid back and forth against each other 1 Along the East Rise the plates spread farthest apart in the south apposed to the north 2 A
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