| A | B |
|---|
| fault | a crack in the Earth’s crust whose sides show evidence of motion |
| earthquake | an example of plates tectonic caused by a transform boundary in which one plate slides over top another |
| mantle | the second layer of the Earth that is mostly rocky material |
| outer core | the third layer of the Earth that is liquid composed mostly of iron and nickel |
| inner core | the inner most layer of the Earth that is a solid composed mostly of iron and nickel |
| weathering | breaking down rocks into smaller pieces |
| erosion | the picking up and carrying away of pieces of rock, caused by wind, water and ice |
| deposition | the relocation of eroded sediments |
| igneous rock | a rock formed when melted rock material cools and hardens |
| sedimentary rock | a rock made by layers of sediments cemented together |
| metamorphic rock | a rock formed under heat and pressure |
| fossil | any remains or imprint of living things in the past |
| rock cycle | rocks changing from one into another in a never ending series of processes |
| plates | large continent size blocks that move slowly about the Earth’s service, driven by heat |
| plate tectonics | plates of Earth’s crust divided into large pieces that are in motion |
| convergent boundary | plates push together |
| divergent boundary | plates are pulled apart |
| transform boundary | plates slide past each other in an opposite direction, also called slip-strike boundary |
| volcano | an example of plate tectonics caused by a convergent or a divergent boundary in which rock underground heat and cause pressure |
| crust | the outer most layer of the Earth that is mostly rocky material |
