How the Earth Works: Revision Tasks

Today, you are going to spend some time working through a broad range of revision tasks to help you prepare for your open book assessment that will take place tomorrow.If you are unsure of any questions, you should use your jotter and Class Notebook to review your learning and find the answers to the tasks you are stuck on. Additionally, you could look a the PowerPoints that have been uploaded to Teams to help you. Alternatively, please contact your teacher. Add the names of each layer to the Earth Structure diagram. Please write "The" before each name and give each word you type a capital letter otherwise your answer may be marked as in correct. For example: "The Crust" "The Inner Core" etc. The Crust The Mantle The Outer Core The Inner Core Match the statements to the correct layer. The Crust This layer floats around and moves very very slowly due to convection currents. The movement is called continental drift. The Mantle This is the thickest layer and is made of molten rock. Convection currents take place here. The Outer Core This layer is also liquid and is make of mostly iron and nickel. It is approximately 1500 miles thick. The Inner Core This is a solid layer. Even though it is around 3700 degrees celcius. It is solid due to the immense pressure it is under. Read the summary of convection currents and fill in the blanks. Convection currents take place in the mantle. The mantle is made of molten rock, also known as magma and this does not stay still. Magma churns in the mantle and we call this movement convection currents.Magma is heated by the extremely hot inner and outer core. In areas where the magma in the mantle is heated significantly, it rises towards the crust. As it rises away from the hot outer core, the magma cools. As it cools it falls back down towards the core and is heated again. The process repeats itself over and over again. As convection currents take place, the Earth's crust is broken up and moves around. Select the most suitable description of continental drift. Continental drift is when the Earth's crust moves at a rate of around 2.5cm per year due to convection currents in the mantle. Continental drift is when the magma in the Earth's mantle churns causing the Earth's curst to move at a rate of around 2.5cm per year. Continental drift is when ice ages happen on Earth. Continental drift occurs only when tectonic plates move away from each other. Match the correct tectonic plate boundary to the correct movement. Constructive Plate Boundaries This is when tectonic plates move away from each other. These plate boundaries can cause earthquakes, tsunamis and volcanoes. Destructive Plate Boundaries This is when and oceanic plate and a continental plate move towards each other. The oceanic plate sinks underneath the continental plate and causes earthquakes, volcanoes and tsunamis. Collision Plate Boundaries This is when continental plates move towards each other. This creates fold mountain ranges such as the Himalayas and can cause earthquakes. Conservative Plate Boundaries This is when tectonic plates slide past each other, they often get stuck which builds pressure and friction. When they eventually push past each other, earthquakes often occur. Complete the explanation of a destructive plate boundary. A destructive plate boundary is when a continental plate and an oceanic plate move towards each other. Since the oceanic plate is thinner, but more dense, meaning it is heavier than the continental plate. This means the oceanic plate sinks underneath the lighter continental plate. As the oceanic plate slides under the continental plate, it can get jammed. A sudden release can often cause earthquakes or tsunamis.As the oceanic plate sinks into the hot mantle, it is exposed the molten rock (magma) and therefore it melts. Another reason it melts is because it gets closer to the very hot inner core. As the oceanic crusts melts, lots of pressure is created. The build up of pressure causes magma to force its way up to the surface of the earth, creating a volcano. Explain 2 ways an earthquake you have studied impacted the people. Look back at the literacy tasks we did in our first online lesson after Christmas. This can be found on the page labeled "Tuesday 12th January - Impacts" in your Class Notebook. Explain 2 ways an earthquake you have studied impacted the landscape. Look back at the literacy tasks we did in our first online lesson after Christmas. This can be found on the page labeled "Tuesday 12th January - Impacts" in your Class Notebook. Sort the different types of aid into "Long Term Aid" or "Short Term Aid". To remind yourself of what long and short term aid is, go the the page labelled "Wednesday 13th January - Management" in your Class Notebook. Long Term Aid Money to help rebuild schools Materials to help rebuild roads Money to help restart the economy Builders to contribute to the rebuilding of homes and work places Short Term Aid First aid kits Emergency response and rescue teams Blankets and emergency shelter kits Bottled water Read the explanations of the different rock types and fill in the blanks. There are three main rock types: sedimentary, igneous and metamorphic.Sedimentary rocks are formed from sediments that have settled at the bottom of a lake, sea or ocean, and have been compressed over millions of years. The rocks are formed due to the build-up of sediments over time. The weathered and eroded material is built up in layers. An example of sedimentary rock is sandstone.Igneous rocks are formed by magma from the molten interior of the Earth. When magma erupts it cools to form volcanic landforms. If magma cools inside the Earth it forms intrusive rock, which may later be exposed by erosion and weathering. An example of igneous rock is granite.Metamorphic rocks form when sedimentary or igneous rocks have been subjected to tremendous heat and pressure, causing them to change into metamorphic rocks. They are usually resistant to weathering and erosion and are therefore very hard-wearing. An example of a metamorphic rock is marble, which originates from the sedimentary rock, limestone. Sort the processes of weather or erosion into the correct category. Have a look at last week's lessons to remind yourself if you are unsure. Weathering Chemcial Biological Freeze-Thaw Onion Skin Erosion Glacial Wind River Wave Choose one form of weathering from the list above and explain how it shapes our landscape. Choose one agent of erosion from the list above and explain how it shapes our landscape. Have you completed tasks using "Wizer" (this website) before. Select the thumbs up or thumbs down option below. Would you recommend completing tasks using "Wizer" (this website)? Select the thumbs up or down symbol and then give a reason for your answer in the space below.