| A | B |
|---|
| rock cycle | A process by which rocks are formed from one another |
| erosion | the movement or transportation of sediment to a new location |
| igneous rock | a rock formed when magma or lava cools and hardens |
| molten | melted |
| magma | melted rock within the Earth |
| lava | Magma that reaches the Earth's surface |
| weathering | the process of breaking rock into smaller pieces |
| geologist | a scientist who studies rocks to tell how they formed |
| fossils | any remains or an imprint of a living thing from the past |
| metamorphic rock | A rock that is changed by heat and pressure |
| sedimentary rock | A rock that is created by the building up layers of sediment over millions of years |
| earthquake | the shaking of the earth caused by the movement of the Earth's boundaries |
| deposition | the dropping of sediment from wind or water that slows down, or from ice that melts |
| volcano | an opening in the Earth's crust where lava, gases, and rock can be released |
| fault | a creack inthe Earth's crust where movement can occur |
| divergent boundary | an area where plates are moving away from each other |
| convergent boundary | an area where plates are moving toward each other |
| sliding or transform boundary | where 2 boundaries slide by each other in opposite directions. |
| crust | the outermost layer of the earth |
| mantle | this layer of the earth is molten rock |
| outer core | this layer of the earth is molten metal |
| inner core | this layer of the earth is solid iron and nickel |
