Fast Changes FoldableEarth Science

Hurricane•How: low pressure area in the ocean

▫Winds 39mph and higher: tropical storm

▫Winds 74mph and higher: hurricane•Where: above warm ocean water•Results: Flooding, Rain, Strong Waves, Winds, Beach Erosion

•Precautions: move to highground, tie down looseobjects or move them inside,tape/board up windowsand stay away from windows

Tornado•How: within a severe thunderstorm

▫High speed spiral winds▫Warm/moist air rises and meets colder air

•Where: Midwestern States•Results: tear down houses,devastates communities,wraps cars around trees

•Precautions: basement (if you have one), cover head, move away from loose objects, move away from windows

Lightning/Thunderstorm•How: moist air rises and begins to cool▫Water falls (precipitation), pulling cold air with it

▫Thunderhead clouds•Where: Everywhere•Results: flooding, lightning,hail, winds, possible tornado

•Precautions: stay inside, stayaway from tall objects

Earthquake•How: Earth’s plates move (along fault line)•Where: where 2 plates meet

▫Example: San Andreas Fault in California•Results: can build up or destroy land, homes

and communities are destroyed, groundcracks, can cause tsunami (giantocean wave) if eruption is underwater

•Precautions: take cover underheavy desk, table, or in adoorway; avoid falling objects

Volcano•How: magma pushes up through cracks in Earth’s crust

•Where: wherever there is a volcano (could contain weak spots)

•Results: eruption from volcano causing lava to flow out, destroyscommunities

•Precautions: none – evacuate when there is aneruption

Blizzard•How: violent snow storm produced by coldair and moisture

•Where: anywhere there is cold air and moisture

•Results: a lot of snow•Precautions: stayinside, stay off theroads

Flooding•How: caused by large amounts of water going on land

•Where: anywhere there is a lot of rainfall or ocean surge

•Results: destroys landand houses

•Precautions: watchfor rising water andstay away

Landslide/Mudslide•How: caused by force of gravity pulling down rocks, soil, andmud

•Where: anywherethere has beena lot of rainfall

•Results: destroys hills,cliffs, and houses

•Precautions: stayaway from unstableland