Earthquakes And Volcanos Flashcards
A vibration caused by an earthquake
Seismic wave
An instrument that detects and records vibration
Seisemometer
an instrument that detects and records earthquakes shows seismic waves as curvy lines along a graph
Seismograph
Volcanoes occur at openings in the earth’s __________________
Crust
volcanoes can affect plants by ________________the plant’s
Killing
_________________________can help plants grow
Volcanoes soil
___________________________is a sudden shaking of the earths crust
Earthquakes
Sudden movement along a earthquakes ___________________________is what causes
Fault
An ocean earthquake may cause a ________________________
Tsunami
_____________________is a line of weakness in rocks
Fault
Giving people advance notice of earthquakes and volcanoes can help keep them ___________________
Safe
Natural hazards have helped scientists understand more about the earth’s _______________________
Structure
Bridges buildings and roads were wrecked because of the ____________________earthquake
San Francisco
___________________affected people by destroying 250 homes
Mount saint heluns
Earthquakes affected the environment by knocking down trees and causing __________________________
Land slides
Volcanoes affect the environment by __________________________the air
Polluting
Volcanoes affect the environment by animals losing their __________________
Habitats
Volcanoes affect the environment by the hot _______________________can burn forests
Lava
_________________________is mountain that builds up around an opening in the earth’s crust
Volcanoe
