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. …showed first 75 words of 444 total…

…showed last 75 words of 444 total…be important to see all of the plates to fully understand the plate tectonic theory. The model also doesn't show convection in any way. Convection would be important to show in the model because it and the combined force of gravity's what really moves the plates of the earth. The model doesn't have much identified landscape. There are a couple volcanoes labeled, but there has to be more then one mountain range on the earth.