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Science Exam Review
| Question | Answer |
|---|---|
| How are igneous rocks formed? | cooling of magma or lava |
| How are sedimentary rocks formed? | weathering compaction and cementation of sediments |
| How are metamorphic rocks formed? | extreme heat and pressure |
| Properties of igneous intrusive rocks? | cool inside earth slowly large crystals |
| Properties of igneous extrusive rocks? | cools outside earth fast small grain or holes |
| Examples of mechanical weathering? | ice wedging abrasion root pry |
| Examples of chemical weathering? | Oxidation dissolution caves caverns can be a result |
| What is cross cutting relationship? | geologic feature is younger than existing rock layer |
| What causes weather to circulate around the world? | global wind patterns |
| what causes local wind systems to occur? | specific heat of land and water |
| Direction objects deflected in northern hemisphere? | clockwise |
| Direction objects deflected in southern hemisphere? | counter clockwise |
| High pressure system? | cloudless clear skies clockwise |
| Low pressure system? | storms bad counter clockwise |
| Air mass | bodies of air that have properties similar to portion of Earth over where they form |
| How do low pressure and high pressure systems affect wind? | closer together causes more wind |
| How do continental plates move? | convection currents and density |
| Divergent boundaries | plates move away from each other mid atlantic ocean |
| Convergent boundaires | volcanoes mountains trenches formed |
| Transform boundaries | earthquakes |
| What type of plate movement causes earthquakes? | transform |
| What helps create a tornado? | warm most war dry and cool dry air |
| Which layer is the most dense? | inner core |
| Which is the ozone layer? | stratosphere |
| What occurs in the troposphere? | weather |