| Term | Definition |
| transform boundary | crust is niether produced or destroyed as the plates slide horizontally past each other. |
| convergent boundaries | where crust is destoryed as one plate dives under another |
| divergent boundaries | where new crust in a generated as the plates pull away from each other |
| plate boundaries zones | boundaries arent defined really well |
| subduction zone | more dense plate subducts dives below other plate |
| lithosphere | the solid outer layer earth that consists of the crust and the rigid upper part of the mantle |
| crater | from expissions of material out of the vent and the collapse of material back into ven |
| radiation | heat transfurred by electro magnetic ways |
| warm front | is when warm pushes cold air front |
| airmass | a large dome of air which has similiar horizontal tempature and moisture characteristics |
| fronts | boundary between two air masses shift weather |
| stationary fronts | temp. stagnent pressure slightly fluctants clouds last for weeks |
| occluded fronts | temp. warm gets milder cold gets colder pressure warm slight drop precipiation steady and light wind variable and light |
| water vapor | air becomes liqiud water or crystals cools below the dew point water condenses around dust in atmosphere call it droplets clouds |
| fog | cloud contact with ground air near ground is cooled to the saturation point |
| stratus clouds | sheets of low (near ground) grey clouds that bring light snow rain or drizzle |
| nimbostratus clouds | thicker layer than stratus clouds that completly block out the sun cause steady rain and snow |
| cumulus clouds | white puffy cluods that usually mean good weather |
| cumulonimbus clouds | dark towering clouds that called "thunderheads" heavy rain thnuder and lighting" |
| cirrus | thin feather like clouds that are made of ice crystals high in atmosphere usually means change of weather is coming |