106761828 - GCSE Plate Tectonics NAME A DATE The Structure of the Earth (14) The Earth is made up of four layers. Label them on to the diagram below. Once you have done that complete the missing word exercise which follows. The inner core is the __________ of the Earth. It is made of solid iron and nickel. This is the _______________ part of the Earth with temperatures of around _________°C. The outer core is made up of liquid iron and nickel. The _______________ is the largest section of the Earth and is made up of ___________________ rock (plastic properties). These partially melted rocks are called magma. Temperatures here are around 5,000°C. The crust is the _______________ layer of the Earth and is made up of solid rock. The crust is the outer layer of the Earth. The Earth's crust is broken up into pieces called ______________, which move or 'float' upon the mantle. Heat rises and falls in the mantle creating currents. These are called _____________ currents. These currents cause the Earth's plates to move. The plates move very ______________ (around one or two millimetres a year). The movement of the Earth's plates is known as ___________________________ . Page 1 of 3 106761828 - GCSE B 1. Plates and Plate Boundaries (16) Which part of the Earth consists of two types of rock ? _______________________________________________________________________ 2. What is a plate boundary? _______________________________________________________________________ 3. What is a constructive plate boundary? _______________________________________________________________________ 4. What is a destructive plate boundary? _______________________________________________________________________ 5. What is a conservative plate boundary? _______________________________________________________________________ 6. Use the map to name a plate that is moving northwards. _______________________________________________________________________ 7. Once again using the map, name two plates that together form a constructive plate boundary. _______________________________________________________________________ Page 2 of 3 106761828 - GCSE Using a diagram, explain what is happening at a constructive plate boundary. Give a geographic example. Using a diagram, explain what is happening at a oceanic-continental destructive plate boundary. Give a geographic example. Using a diagram, explain what is happening at a conservative plate boundary. Give a geographic example. Page 3 of 3